Refurb Squared
Cisco C37 Compatible SFP28 25G DWDM 1547.72nm 100GHz 10km DOM Duplex LC/UPC SMF Optical Transceiver Module for Transmission (Industrial)
Cisco C37 Compatible SFP28 25G DWDM 1547.72nm 100GHz 10km DOM Duplex LC/UPC SMF Optical Transceiver Module for Transmission (Industrial)
ISO 14001:2015
ISO 45001:2018
ISO 9001:2015
This Cisco Compatible SFP28 transceiver provides 25GBase-DWDM throughput up to 10km over single mode fiber (SMF) using a wavelength of 1547.72nm via an LC duplex connector. It is fully compliant with the SFP28 MSA, CPRI and eCPRI standard. Digital optical monitoring (DOM) support is also present to allow access to real-time operating parameters. The transceiver provides 25GBASE Ethernet connectivity option for 25G Ethernet, telecom and data center, which significantly improve the flexibility, economy and reliability of networking. It is capable of withstanding rugged environments and can operate at temperatures between -40 and 85C. Note: The FS P/N is changed from DC37-25GS28-10-I to DW-SFP25G10-37-I, but the product is the same. Only the FS P/N has been changed.
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.





