Product Detail Information: The Cisco Catalyst WS-G5484 gigabit interface converter (GBIC) is a hot-swappable input/output (transceiver) device that plugs into a module's Gigabit Ethernet port, linking the port with the fiber-optic network. The Cisco Catalyst WS-G5484 GBIC with 1000BaseSX operates on ordinary multi-mode fiber optic link spans of up to 550 m in length.