Tripp Lite Cisco-Compatible GLC-LH-SMD SFP Transceiver - 10/100/1000Base-LX/LH/ DDM/ SMF/ LC/ 1310 nm/ 10 km - SFP (mini-GBIC) transceiver module (equivalent to: Cisco GLC-LH-SMD) - GigE - 1000Base-LX/ 1000Base-LH - LC single-mode - up to 6.2 miles - 1310