Cisco WS-G5484. Maximum data transfer rate: 1000 Mbit/s, Converter input interface: 1000Base-SX, Networking standards: IEEE 802.3z. Fiber optic connector: SC, Connectivity technology: Wired. Maximum transfer distance: 1000 m, Wavelength: 850 nm, Fiber mode structure: Multi-mode. Product colour: Stainless steel. Input voltage: 5 V

The industry-standard Cisco® Gigabit Interface Converter (GBIC) is a hot-swappable input/output device that plugs into a Gigabit Ethernet port or slot, linking the port with the network. Cisco GBICs can be interchanged on a wide variety of Cisco products and can be intermixed in combinations of 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, 1000BASE-CWDM, or 1000BASE-DWDM interfaces on a port-by-port basis.

Cisco 1000BASE-SX GBIC.
The Cisco 1000BASE-SX GBIC (WS-G5484) operates on legacy multimode fiber (MMF) optic link spans up to 1815 feet (550 m) and on laser-optimized multimode fiber (OM3) optic link spans up to 3281 feet (1 km).