Cisco compatible WS-G5486 1000Base-LX/LH GBIC Optic, SMF, LC connector, 10km(singlemode or multimode) Compatible with CISCO WS-G5486, 3COM 3CGBIC92, HP J4132A, EXTREME 10013, NORTEL AA1419002,AVAYA 4705-101, ALCATEL GBIC-LX completely