Refurb Squared
Arista Networks QDD-400G-XDR4 Compatible 400GBASE-XDR4 QSFP-DD 8 x 50G PAM4 1310nm 2km DOM MPO-12/APC SMF Optical Transceiver Module, Breakout to 4 x 100G-FR
Arista Networks QDD-400G-XDR4 Compatible 400GBASE-XDR4 QSFP-DD 8 x 50G PAM4 1310nm 2km DOM MPO-12/APC SMF Optical Transceiver Module, Breakout to 4 x 100G-FR
ISO 14001:2015
ISO 45001:2018
ISO 9001:2015
The 400GBASE-XDR4 Module supports link lengths of up to 2km parallel SMF with MTP/MPO-12 connector. It is compliant to IEEE 802.3bs protocol and 400GAUI-8 standards. The 400 Gigabit Ethernet signal is carried over four parallel lanes by one wavelength per lane. It can be used as 4x100G breakout to QSFP-FR-100G.
Enterprise Grade Performance
Enterprise Grade Performance
Our networking cables and optical transceivers are designed for high-performance enterprise networks. They support fast data transmission, stable connectivity, and consistent signal strength across switches, servers, and routers.
Wide Device Compatibility
Wide Device Compatibility
These modules are engineered to work with many leading networking brands such as Cisco, Juniper, Arista, and other enterprise systems. They integrate easily into existing network infrastructure.
Simple Plug And Play Setup
Simple Plug And Play Setup
Installation is quick and easy. Simply insert the cable or transceiver into the compatible port and it begins operating immediately without complicated configuration.
Reliable Connection Stability
Tested And Verified Products
Affordable Enterprise Pricing

Competitive Pricing
Refurb Squared networking hardware delivers high-speed connectivity using tested optical modules and enterprise-grade cables built for reliability and seamless device compatibility.
Built For Reliable Networking
At Refurb Squared we provide high-quality networking hardware trusted by engineers and IT professionals. Our mission is to deliver reliable technology at affordable prices.





