SFP (mini-GBIC) transceiver module - fiber optic - LC single-mode - up to 52.8 miles - OC-12/STM-4 - 1550 nm - for P/N: 15310-CL-AC-SA-K9=, 15310-CL-DC-SA-K9, 15454-MRC-I-12, 15454-MRC-I-12=