Description Cisco SFP-10/25G-LR-S Compatible is a dual-rate 25GBASE-LR SFP28 module supporting both 10G and 25G over 10km of single-mode fiber at 1310nm. It features duplex LC connectors and DOM, providing flexibility for networks transitioning from 10G to 25G. This transceiver is a high-performance choice for single-mode fiber links in hybrid speed environments.