SFP (mini-GBIC) transceiver module - Gigabit Ethernet - 1000Base-LX - LC single-mode - up to 6.2 miles - 1310 nm - for Cisco 38XX; ASA 55XX; Catalyst 29XX 3560 3750; Catalyst Compact 2960; ME 4924 6524
Transition Networks TN-GLC-LH-SM Single-mode 1000Base-LX 6.2 Miles Cisco Compatible Transceiver Module