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 gbic r r the dem 310gt is a high performance 1310nm multimodesinglemode sfp mini gbic transceiver supporting full duplex gigabit speeds on multimodesinglemode fiber for distances of up to 550m550m10km on 6