HP Hewlett-Packard ProCurve J4859C Gigabit LX-LC Mini GBIC Transceiver Module
ProCurve Gigabit-LX-LC Mini-GBIC is a small form factor pluggable (SFP) gigabit LX transceiver that provides a full-duplex gigabit solution up to 10 km (single mode) or 550 m (multimode).