LinkGain Ethernet Extender over VDSL Save wiring costs by using voice-grade copper wire-even phone wire you already have installed. Extends 10- or 100-Mbps Ethernet up to 1.2 miles (2 km). Perfect for connecting an isolated user in another building or in another part of a large building. Symmetrical VDSL supports speeds of up to 50 Mbps. Rackmountable in the LinkGain Chassis (LB300A-RACK).