The Ubiquiti 25 Gbps Multi-Mode Optical Module, 100m [UACC-OM-SFP28-SR] is a short-range, SFP28-compatible optical transceiver module.The 25 Gbps Multi-mode Optical Module is an optical transceiver capable of sustaining 25 Gbps throughput over a fiber connection. After connecting the module to a compatible fiber line, simply insert it into any SFP28 port to experience true 25 Gbps speed.