{"title":"InfiniBand LinkX®","description":null,"products":[{"product_id":"rs-mms4a20-xm800-156207","title":"Refurb Squared NVIDIA\/Mellanox MMS4A20-XM800 (980-9IAT0-00XM00) single port transceiver, 800Gbps, OSFP DR4, InfiniBand XDR, MPO, APC 1310nm SMF, up to 500m, RHS (Flat Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eThe NVIDIA MMS4A20-XM800 is an 800Gb\/s single-port OSFP optical transceiver designed for XDR 800Gb\/s InfiniBand networking over single-mode fiber. It is primarily used to connect Quantum-X800 QM3x00 switches to dual-800Gb\/s ConnectX-8 mezzanine adapters in liquid-cooled systems and ConnectX-8 PCIe adapters. The OSFP cages are located on the front panel of the compute tray for direct high-density connectivity. The module operates with 4 lanes of 200G-PAM4 electrical signaling, enabling two bits per clock cycle. On the optical side, it implements a single 4-channel DR4 interface over one MPO-12\/APC connector, supporting a datacenter reach of up to 500 meters over SMF. One MPO-12\/APC optical connector is used per transceiver.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMS4A20-XM800","offer_id":66833087332467,"sku":"RS-MMS4A20-XM800-156207","price":2249.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6029-1.png?v=1791632353"},{"product_id":"rs-mma4z00-ns400-156212","title":"Refurb Squared NVIDIA\/Mellanox MMA4Z00-NS400 Single-port Transceiver, 400Gbps, NDR, OSFP, MPO, 850nm MMF, SR4, up to 50m (Flat Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA\/Mellanox Original MMA4Z00-NS400 is an InfiniBand (IB) and Ethernet (ETH) 400Gb\/s, Single-port, OSFP, SR4 multimode parallel transceiver using a single, 4-channel MPO-12\/APC optical connector. The Short Reach 4-channel (SR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using OM4 multimode fiber and assumes two optical patch panels in the link.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMA4Z00-NS400","offer_id":66833087398003,"sku":"RS-MMA4Z00-NS400-156212","price":1319.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6030-1_24845dc1-9f4a-47cc-8652-abf37ee1c70d.png?v=1791632354"},{"product_id":"rs-mma4z00-ns-156217","title":"Refurb Squared NVIDIA\/Mellanox MMA4Z00-NS Twin-port Transceiver, 800Gbps, 2xNDR, OSFP, 2xMPO, 850nm MMF, SR8, up to 50m (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA\/Mellanox Original MMA4Z00-NS is an InfiniBand and Ethernet 800Gb\/s 2x400Gb\/s Twin-port OSFP, SR8 multimode, parallel, 8-channel transceiver using two, 4-channel MPO-12\/APC optical connectors at 400Gb\/s each. The parallel multimode, short reach 8-channel (SR8) uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using 8 multimode fibers.The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMA4Z00-NS is linking two switches together with up to 50-meter transceivers.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMA4Z00-NS","offer_id":66833087463539,"sku":"RS-MMA4Z00-NS-156217","price":1499.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6031-1.png?v=1791632355"},{"product_id":"rs-mms4a00-xm-156218","title":"Refurb Squared NVIDIA\/Mellanox MMS4A00-XM (980-9IAH1-00XM00) twin-port transceiver, 1600Gbps, OSFP 2DR4, InfiniBand XDR, 2xMPO, 1310nm SMF, EML, up to 500m, IHS (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eThe NVIDIA MMS4A00-XM is a 1.6Tb\/s twin-port OSFP single-mode optical transceiver designed for XDR 800Gb\/s InfiniBand networking. The module integrates two independent 800Gb\/s DR4 optical engines (2×DR4). Each engine operates with 4 lanes of 200G-PAM4 signaling, resulting in an electrical configuration of 8 lanes of 200G-PAM4.On the optical side, the transceiver provides two DR4 interfaces over two MPO-12\/APC connectors, each supporting up to 500 meters over single-mode fiber. This dual-engine 2×800G architecture enables the Quantum-X800 QM3400 72-cage switch to scale up to 144 ports of 800Gb\/s InfiniBand connectivity. The module uses an IHS (Integrated Heat Sink) OSFP shell to satisfy the thermal requirements of high-density XDR switch environments.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMS4A00-XM","offer_id":66833087496307,"sku":"RS-MMS4A00-XM-156218","price":3149.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6032-1.png?v=1791632356"},{"product_id":"rs-mms4x00-ns-156223","title":"Refurb Squared NVIDIA MMS4X00-NS Twin-port Transceiver, 800Gbps, 2xNDR, OSFP, 2xMPO, 1310nm SMF, DR8, up to 100m (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA Original MMS4X00-NS is an InfiniBand and Ethernet 800Gb\/s 2x400Gb\/s Twin-port OSFP, 2xDR4 single mode, parallel, 8-channel transceiver using two, 4-channel MPO-12\/APC optical connectors at 400Gb\/s each. The parallel single mode, datacenter reach 8-channel (2xDR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 100-meters using 8 single mode fibers. The 100-meter length assumes two optical patch panels in the link.The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMS4X00-NS is linking two switches together with up to 100-meters.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMS4X00-NS","offer_id":66833087529075,"sku":"RS-MMS4X00-NS-156223","price":2699.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6033-1.png?v=1791632357"},{"product_id":"rs-mms4a20-xm800-156224","title":"Refurb Squared NVIDIA\/Mellanox MMS4A20-XM800 (980-9IAT0-00XM00) single port transceiver, 800Gbps, OSFP DR4, InfiniBand XDR, MPO, APC 1310nm SMF, up to 500m, RHS (Flat Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eThe NVIDIA MMS4A20-XM800 is an 800Gb\/s single-port OSFP optical transceiver designed for XDR 800Gb\/s InfiniBand networking over single-mode fiber. It is primarily used to connect Quantum-X800 QM3x00 switches to dual-800Gb\/s ConnectX-8 mezzanine adapters in liquid-cooled systems and ConnectX-8 PCIe adapters. The OSFP cages are located on the front panel of the compute tray for direct high-density connectivity. The module operates with 4 lanes of 200G-PAM4 electrical signaling, enabling two bits per clock cycle. On the optical side, it implements a single 4-channel DR4 interface over one MPO-12\/APC connector, supporting a datacenter reach of up to 500 meters over SMF. One MPO-12\/APC optical connector is used per transceiver.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMS4A20-XM800","offer_id":66833087561843,"sku":"RS-MMS4A20-XM800-156224","price":2249.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6034-1_96d72d34-2b41-43f1-9701-b1316770f72e.png?v=1791632359"},{"product_id":"rs-mma4z00-ns400-156229","title":"Refurb Squared NVIDIA\/Mellanox MMA4Z00-NS400 Single-port Transceiver, 400Gbps, NDR, OSFP, MPO, 850nm MMF, SR4, up to 50m (Flat Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA\/Mellanox Original MMA4Z00-NS400 is an InfiniBand (IB) and Ethernet (ETH) 400Gb\/s, Single-port, OSFP, SR4 multimode parallel transceiver using a single, 4-channel MPO-12\/APC optical connector. The Short Reach 4-channel (SR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using OM4 multimode fiber and assumes two optical patch panels in the link.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMA4Z00-NS400","offer_id":66833087594611,"sku":"RS-MMA4Z00-NS400-156229","price":1319.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6035-1.png?v=1791632360"},{"product_id":"rs-mma4z00-ns-156234","title":"Refurb Squared NVIDIA\/Mellanox MMA4Z00-NS Twin-port Transceiver, 800Gbps, 2xNDR, OSFP, 2xMPO, 850nm MMF, SR8, up to 50m (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA\/Mellanox Original MMA4Z00-NS is an InfiniBand and Ethernet 800Gb\/s 2x400Gb\/s Twin-port OSFP, SR8 multimode, parallel, 8-channel transceiver using two, 4-channel MPO-12\/APC optical connectors at 400Gb\/s each. The parallel multimode, short reach 8-channel (SR8) uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using 8 multimode fibers.The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMA4Z00-NS is linking two switches together with up to 50-meter transceivers.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMA4Z00-NS","offer_id":66833087627379,"sku":"RS-MMA4Z00-NS-156234","price":1499.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6036-1.png?v=1791632361"},{"product_id":"rs-mms4a00-xm-156235","title":"Refurb Squared NVIDIA\/Mellanox MMS4A00-XM (980-9IAH1-00XM00) twin-port transceiver, 1600Gbps, OSFP 2DR4, InfiniBand XDR, 2xMPO, 1310nm SMF, EML, up to 500m, IHS (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eThe NVIDIA MMS4A00-XM is a 1.6Tb\/s twin-port OSFP single-mode optical transceiver designed for XDR 800Gb\/s InfiniBand networking. The module integrates two independent 800Gb\/s DR4 optical engines (2×DR4). Each engine operates with 4 lanes of 200G-PAM4 signaling, resulting in an electrical configuration of 8 lanes of 200G-PAM4.On the optical side, the transceiver provides two DR4 interfaces over two MPO-12\/APC connectors, each supporting up to 500 meters over single-mode fiber. This dual-engine 2×800G architecture enables the Quantum-X800 QM3400 72-cage switch to scale up to 144 ports of 800Gb\/s InfiniBand connectivity. The module uses an IHS (Integrated Heat Sink) OSFP shell to satisfy the thermal requirements of high-density XDR switch environments.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMS4A00-XM","offer_id":66833087660147,"sku":"RS-MMS4A00-XM-156235","price":3149.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6037-1.png?v=1791632362"},{"product_id":"rs-mms4x00-ns-156240","title":"Refurb Squared NVIDIA MMS4X00-NS Twin-port Transceiver, 800Gbps, 2xNDR, OSFP, 2xMPO, 1310nm SMF, DR8, up to 100m (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA Original MMS4X00-NS is an InfiniBand and Ethernet 800Gb\/s 2x400Gb\/s Twin-port OSFP, 2xDR4 single mode, parallel, 8-channel transceiver using two, 4-channel MPO-12\/APC optical connectors at 400Gb\/s each. The parallel single mode, datacenter reach 8-channel (2xDR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 100-meters using 8 single mode fibers. The 100-meter length assumes two optical patch panels in the link.The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMS4X00-NS is linking two switches together with up to 100-meters.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMS4X00-NS","offer_id":66833087758451,"sku":"RS-MMS4X00-NS-156240","price":2699.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6038-1.png?v=1791632363"},{"product_id":"rs-mms4a20-xm800-156241","title":"Refurb Squared NVIDIA\/Mellanox MMS4A20-XM800 (980-9IAT0-00XM00) single port transceiver, 800Gbps, OSFP DR4, InfiniBand XDR, MPO, APC 1310nm SMF, up to 500m, RHS (Flat Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eThe NVIDIA MMS4A20-XM800 is an 800Gb\/s single-port OSFP optical transceiver designed for XDR 800Gb\/s InfiniBand networking over single-mode fiber. It is primarily used to connect Quantum-X800 QM3x00 switches to dual-800Gb\/s ConnectX-8 mezzanine adapters in liquid-cooled systems and ConnectX-8 PCIe adapters. The OSFP cages are located on the front panel of the compute tray for direct high-density connectivity. The module operates with 4 lanes of 200G-PAM4 electrical signaling, enabling two bits per clock cycle. On the optical side, it implements a single 4-channel DR4 interface over one MPO-12\/APC connector, supporting a datacenter reach of up to 500 meters over SMF. One MPO-12\/APC optical connector is used per transceiver.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMS4A20-XM800","offer_id":66833087823987,"sku":"RS-MMS4A20-XM800-156241","price":2249.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6039-1_f6d8ff77-a142-41f2-9265-45956c93f41a.png?v=1791632364"},{"product_id":"rs-mma4z00-ns400-156246","title":"Refurb Squared NVIDIA\/Mellanox MMA4Z00-NS400 Single-port Transceiver, 400Gbps, NDR, OSFP, MPO, 850nm MMF, SR4, up to 50m (Flat Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA\/Mellanox Original MMA4Z00-NS400 is an InfiniBand (IB) and Ethernet (ETH) 400Gb\/s, Single-port, OSFP, SR4 multimode parallel transceiver using a single, 4-channel MPO-12\/APC optical connector. The Short Reach 4-channel (SR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using OM4 multimode fiber and assumes two optical patch panels in the link.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMA4Z00-NS400","offer_id":66833087856755,"sku":"RS-MMA4Z00-NS400-156246","price":1319.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6040-1.png?v=1791632365"},{"product_id":"rs-mma4z00-ns-156251","title":"Refurb Squared NVIDIA\/Mellanox MMA4Z00-NS Twin-port Transceiver, 800Gbps, 2xNDR, OSFP, 2xMPO, 850nm MMF, SR8, up to 50m (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA\/Mellanox Original MMA4Z00-NS is an InfiniBand and Ethernet 800Gb\/s 2x400Gb\/s Twin-port OSFP, SR8 multimode, parallel, 8-channel transceiver using two, 4-channel MPO-12\/APC optical connectors at 400Gb\/s each. The parallel multimode, short reach 8-channel (SR8) uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using 8 multimode fibers.The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMA4Z00-NS is linking two switches together with up to 50-meter transceivers.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMA4Z00-NS","offer_id":66833087889523,"sku":"RS-MMA4Z00-NS-156251","price":1499.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6041-1.png?v=1791632367"},{"product_id":"rs-mms4a00-xm-156252","title":"Refurb Squared NVIDIA\/Mellanox MMS4A00-XM (980-9IAH1-00XM00) twin-port transceiver, 1600Gbps, OSFP 2DR4, InfiniBand XDR, 2xMPO, 1310nm SMF, EML, up to 500m, IHS (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eThe NVIDIA MMS4A00-XM is a 1.6Tb\/s twin-port OSFP single-mode optical transceiver designed for XDR 800Gb\/s InfiniBand networking. The module integrates two independent 800Gb\/s DR4 optical engines (2×DR4). Each engine operates with 4 lanes of 200G-PAM4 signaling, resulting in an electrical configuration of 8 lanes of 200G-PAM4.On the optical side, the transceiver provides two DR4 interfaces over two MPO-12\/APC connectors, each supporting up to 500 meters over single-mode fiber. This dual-engine 2×800G architecture enables the Quantum-X800 QM3400 72-cage switch to scale up to 144 ports of 800Gb\/s InfiniBand connectivity. The module uses an IHS (Integrated Heat Sink) OSFP shell to satisfy the thermal requirements of high-density XDR switch environments.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMS4A00-XM","offer_id":66833087922291,"sku":"RS-MMS4A00-XM-156252","price":3149.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6042-1.png?v=1791632368"},{"product_id":"rs-mms4x00-ns-156257","title":"Refurb Squared NVIDIA MMS4X00-NS Twin-port Transceiver, 800Gbps, 2xNDR, OSFP, 2xMPO, 1310nm SMF, DR8, up to 100m (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA Original MMS4X00-NS is an InfiniBand and Ethernet 800Gb\/s 2x400Gb\/s Twin-port OSFP, 2xDR4 single mode, parallel, 8-channel transceiver using two, 4-channel MPO-12\/APC optical connectors at 400Gb\/s each. The parallel single mode, datacenter reach 8-channel (2xDR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 100-meters using 8 single mode fibers. The 100-meter length assumes two optical patch panels in the link.The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMS4X00-NS is linking two switches together with up to 100-meters.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. 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It is primarily used to connect Quantum-X800 QM3x00 switches to dual-800Gb\/s ConnectX-8 mezzanine adapters in liquid-cooled systems and ConnectX-8 PCIe adapters. The OSFP cages are located on the front panel of the compute tray for direct high-density connectivity. The module operates with 4 lanes of 200G-PAM4 electrical signaling, enabling two bits per clock cycle. On the optical side, it implements a single 4-channel DR4 interface over one MPO-12\/APC connector, supporting a datacenter reach of up to 500 meters over SMF. One MPO-12\/APC optical connector is used per transceiver.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. 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The Short Reach 4-channel (SR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using OM4 multimode fiber and assumes two optical patch panels in the link.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMA4Z00-NS400","offer_id":66833088086131,"sku":"RS-MMA4Z00-NS400-156263","price":1319.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6045-1.png?v=1791632372"},{"product_id":"rs-mma4z00-ns-156268","title":"Refurb Squared NVIDIA\/Mellanox MMA4Z00-NS Twin-port Transceiver, 800Gbps, 2xNDR, OSFP, 2xMPO, 850nm MMF, SR8, up to 50m (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA\/Mellanox Original MMA4Z00-NS is an InfiniBand and Ethernet 800Gb\/s 2x400Gb\/s Twin-port OSFP, SR8 multimode, parallel, 8-channel transceiver using two, 4-channel MPO-12\/APC optical connectors at 400Gb\/s each. The parallel multimode, short reach 8-channel (SR8) uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using 8 multimode fibers.The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMA4Z00-NS is linking two switches together with up to 50-meter transceivers.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMA4Z00-NS","offer_id":66833088118899,"sku":"RS-MMA4Z00-NS-156268","price":1499.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6046-1.png?v=1791632373"},{"product_id":"rs-mms4a00-xm-156269","title":"Refurb Squared NVIDIA\/Mellanox MMS4A00-XM (980-9IAH1-00XM00) twin-port transceiver, 1600Gbps, OSFP 2DR4, InfiniBand XDR, 2xMPO, 1310nm SMF, EML, up to 500m, IHS (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eThe NVIDIA MMS4A00-XM is a 1.6Tb\/s twin-port OSFP single-mode optical transceiver designed for XDR 800Gb\/s InfiniBand networking. The module integrates two independent 800Gb\/s DR4 optical engines (2×DR4). Each engine operates with 4 lanes of 200G-PAM4 signaling, resulting in an electrical configuration of 8 lanes of 200G-PAM4.On the optical side, the transceiver provides two DR4 interfaces over two MPO-12\/APC connectors, each supporting up to 500 meters over single-mode fiber. This dual-engine 2×800G architecture enables the Quantum-X800 QM3400 72-cage switch to scale up to 144 ports of 800Gb\/s InfiniBand connectivity. The module uses an IHS (Integrated Heat Sink) OSFP shell to satisfy the thermal requirements of high-density XDR switch environments.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMS4A00-XM","offer_id":66833088217203,"sku":"RS-MMS4A00-XM-156269","price":3149.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6047-1.png?v=1791632374"},{"product_id":"rs-mms4x00-ns-156274","title":"Refurb Squared NVIDIA MMS4X00-NS Twin-port Transceiver, 800Gbps, 2xNDR, OSFP, 2xMPO, 1310nm SMF, DR8, up to 100m (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA Original MMS4X00-NS is an InfiniBand and Ethernet 800Gb\/s 2x400Gb\/s Twin-port OSFP, 2xDR4 single mode, parallel, 8-channel transceiver using two, 4-channel MPO-12\/APC optical connectors at 400Gb\/s each. The parallel single mode, datacenter reach 8-channel (2xDR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 100-meters using 8 single mode fibers. The 100-meter length assumes two optical patch panels in the link.The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMS4X00-NS is linking two switches together with up to 100-meters.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. 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It is primarily used to connect Quantum-X800 QM3x00 switches to dual-800Gb\/s ConnectX-8 mezzanine adapters in liquid-cooled systems and ConnectX-8 PCIe adapters. The OSFP cages are located on the front panel of the compute tray for direct high-density connectivity. The module operates with 4 lanes of 200G-PAM4 electrical signaling, enabling two bits per clock cycle. On the optical side, it implements a single 4-channel DR4 interface over one MPO-12\/APC connector, supporting a datacenter reach of up to 500 meters over SMF. One MPO-12\/APC optical connector is used per transceiver.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMS4A20-XM800","offer_id":66833088315507,"sku":"RS-MMS4A20-XM800-156275","price":2249.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6049-1.png?v=1791632377"},{"product_id":"rs-mma4z00-ns400-156280","title":"Refurb Squared NVIDIA\/Mellanox MMA4Z00-NS400 Single-port Transceiver, 400Gbps, NDR, OSFP, MPO, 850nm MMF, SR4, up to 50m (Flat Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA\/Mellanox Original MMA4Z00-NS400 is an InfiniBand (IB) and Ethernet (ETH) 400Gb\/s, Single-port, OSFP, SR4 multimode parallel transceiver using a single, 4-channel MPO-12\/APC optical connector. The Short Reach 4-channel (SR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using OM4 multimode fiber and assumes two optical patch panels in the link.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. Every module is 100% pre-shipment tested and coded for seamless compatibility with major platforms such as Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet — backed by a lifetime warranty, fast global delivery, and dedicated technical support for data centers, telecom operators, enterprise networks and system integrators worldwide.\u003c\/p\u003e","brand":"Refurb Squared","offers":[{"title":"MMA4Z00-NS400","offer_id":66833088348275,"sku":"RS-MMA4Z00-NS400-156280","price":1319.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0726\/0048\/6003\/files\/Product6050-1.png?v=1791632377"},{"product_id":"rs-mma4z00-ns-156285","title":"Refurb Squared NVIDIA\/Mellanox MMA4Z00-NS Twin-port Transceiver, 800Gbps, 2xNDR, OSFP, 2xMPO, 850nm MMF, SR8, up to 50m (Finned Top)","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRefurb Squared delivers fully tested, OEM-compatible optical transceivers, DWDM\/CWDM systems, media converters and DAC\/AOC cables — coded for Cisco, Huawei, Juniper, Arista, HPE, Dell, Nokia and Fortinet platforms, with lifetime warranty and fast global delivery.\u003c\/p\u003e\n\n\u003cp\u003eNVIDIA\/Mellanox Original MMA4Z00-NS is an InfiniBand and Ethernet 800Gb\/s 2x400Gb\/s Twin-port OSFP, SR8 multimode, parallel, 8-channel transceiver using two, 4-channel MPO-12\/APC optical connectors at 400Gb\/s each. The parallel multimode, short reach 8-channel (SR8) uses 100G-PAM4 modulation and has a maximum fiber reach of 50-meters using 8 multimode fibers.The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMA4Z00-NS is linking two switches together with up to 50-meter transceivers.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. 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The module integrates two independent 800Gb\/s DR4 optical engines (2×DR4). Each engine operates with 4 lanes of 200G-PAM4 signaling, resulting in an electrical configuration of 8 lanes of 200G-PAM4.On the optical side, the transceiver provides two DR4 interfaces over two MPO-12\/APC connectors, each supporting up to 500 meters over single-mode fiber. This dual-engine 2×800G architecture enables the Quantum-X800 QM3400 72-cage switch to scale up to 144 ports of 800Gb\/s InfiniBand connectivity. The module uses an IHS (Integrated Heat Sink) OSFP shell to satisfy the thermal requirements of high-density XDR switch environments.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. 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The parallel single mode, datacenter reach 8-channel (2xDR4) design uses 100G-PAM4 modulation and has a maximum fiber reach of 100-meters using 8 single mode fibers. The 100-meter length assumes two optical patch panels in the link.The Quantum-2 and Spectrum-4 switches require finned-top OSFP shells for extra transceiver cooling. The main application for MMS4X00-NS is linking two switches together with up to 100-meters.\u003c\/p\u003e\u003cp\u003e\n\n\u003c\/p\u003e\u003cp\u003eRefurb Squared is brand of OEM-compatible optical networking products, including SFP, SFP+, QSFP+, QSFP28 and QSFP-DD transceivers, DWDM\/CWDM systems, media converters, and DAC\/AOC cables. 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