The D-Link DEM-311GT is a high performance 850 nm multimode Small Form-Factor Pluggable (SFP) / mini-GBIC transceiver. It offers full-duplex 1000 Mbps speed on multimode fiber for distances of up to 220 m/550 m on 62.5 µm/50 µm fiber respectively. The hot-pluggable transceiver comes with a metal housing to reduce EMI and to increase durability.