Scale your 10100 mbps ethernet network up to 15km over rj11 phone lines the startechcom vdsl2 ethernet extender kit lets you connect a remote network segment or device to your network using rj11 phone cable the network extender is a simple reliable and cost effective solution for spanning your network across long distances while maintaining high speeds the extender also safeguards your investments by providing surge and esd protection to your connected device the vdsl2 extender