Refurb Squared
Arista Networks OSFP-400G-LR4 Compatible 400GBASE-LR4 OSFP Finned Top 8 x 50G PAM4 1310nm 10km DOM Duplex LC/UPC SMF Optical Transceiver Module
Arista Networks OSFP-400G-LR4 Compatible 400GBASE-LR4 OSFP Finned Top 8 x 50G PAM4 1310nm 10km DOM Duplex LC/UPC SMF Optical Transceiver Module
ISO 14001:2015
ISO 45001:2018
ISO 9001:2015
The 400GBASE LR4 OSFP optical transceiver module is designed for 400GBASE Ethernet throughput up to 10km link lengths over OS2 single-mode fiber (SMF) via duplex LC/UPC connectors. This transceiver is compliant with OSFP MSA, IEEE 802.3 bs-400GAUI-8, IEEE 802.3 cu, and CMIS4.0 standards. The built-in digital diagnostics monitoring (DDM) allows access to real-time operating parameters. The single-port OSFP finned-top transceiver is used in Ethernet air-cooled switches. Featuring low latency, low power, and reliability, it supports uplink connections in spine-leaf architectures, such as from a 400G switch to a 400G switch and an 800G switch to a 400G switch. It is the ideal solution for HPC computing, AI, and cloud data centers.
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.





