Description Cisco SFP-10/25G-LR-S Compatible is a dual-rate 25GBASE-LR SFP28 module supporting 10km transmission over single-mode fiber at 1310nm. It features duplex LC connectivity and DOM, allowing seamless operation at both 10G and 25G speeds. This transceiver is perfect for enterprise networks migrating from 10G to 25G over single-mode fiber plants.