Cisco ONS - XFP transceiver module - 10 GigE - CWDM - LC single-mode - up to 24.9 miles - OC-192/STM-64 - 1510 nm - for P/N: 15454-10GE-XP-WS/ 15454-ADM-10G-RF/ 15454-ADM-10G-WS/ 15454-GE-XPE/ 15454-GE-XPE-WS