Finisar's FCM-8519-2-T4 HSSDC Copper GBIC transceiver. Compatible with Gigabit Ethernet 1000Base-CX standard and 1x Fibre Channel over copper. The modules are available with HSSDC connectors. Features: Up to 1.25 Gb/s bi-directional data links, Hot plug-and-play capability, Compliant with the latest GBIC specification, Metal enclosure for lower emissions and ESD, Unique latch-arm design. GBIC Only.