Refurb Squared NVIDIA/Mellanox MMA4Z00-NS400-T Compatible Coherent VCSEL & Broadcom DSP 400GBASE-SR4 OSFP PAM4 850nm 100m MTP/MPO-12 APC MMF Optical Transceiver Module

Description

Refurb 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.

RS NVIDIA/Mellanox MMA4Z00-NS400-T Compatible 400G SR4 OSFP optical transceiver is a four-channel, parallel, pluggable fiber-optic OSFP with built-in Broadcom DSP and Broadcom VCSEL, designed for 400G Ethernet applications. It integrates four data lanes in each direction, operating at 4 × 53.125 GBd. The OSFP SR4 module supports transmission distances of up to 60 meters over OM3 MMF and up to 100 meters over OM4 MMF. The 400G OSFP SR4 is intended for short-reach, high-bandwidth data communication and interconnect scenarios in modern data centers. It is commonly deployed on OSFP ports of NVIDIA ConnectX-7 adapters, with the opposite end connecting to OSFP-800G-2xSR4 optical modules on 800G OSFP switches. This configuration enables efficient 400G-to-800G interconnection, providing a practical and cost-effective solution for high-density server-to-switch and rack-level connectivity.

Refurb 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.