Refurb Squared
Extreme Compatible 50GBASE-ZR2 QSFP28 1310nm 80km DOM Duplex LC/UPC SMF Optical Transceiver Module
Extreme Compatible 50GBASE-ZR2 QSFP28 1310nm 80km DOM Duplex LC/UPC SMF Optical Transceiver Module
ISO 14001:2015
ISO 45001:2018
ISO 9001:2015
This Extreme-compatible QSFP28 transceiver provides high-speed 50G connectivity over distances up to 80km. Operating at 1310nm, it delivers consistent and reliable optical performance. The duplex LC/UPC connector ensures secure fiber connections. It includes DOM functionality for advanced monitoring and diagnostics. Suitable for enterprise and carrier-grade networks, it supports demanding applications. The module is tested for full compatibility with Extreme networking hardware.
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.





