D links new line of gigabit interface converters gbics and small form factor pluggables sfps transceivers represent an industry leading combination of performance and affordability d links new gigabit transceivers are available in two form factors standard gbic or sfpmini gbicr r the dem 311gt is a high performance 850nm multimode sfpmini gbic transceiver supporting full duplex gigabit speeds on multimode fiber for distances of up to 220m550m on 625m50m fiber respectively