Tripp Lite's DNET1 Network Dataline Surge Suppressor is ideal for protecting networked equipment from "backdoor" surges through data communication lines. It protects networked equipment with up to 300% more surge absorbing power than competitive models. The unit has RJ11/45 compatible connections that allow you to connect directly to a hardware port and 10Base-T, 100Base-T, Token Ring, AS400/Sys3x, and RS-422 connections. A RJ45 cable is also included. Up to $100,000 Ultimate Lifetime Insurance protection available when you also install other insurance-backed Tripp Lite AC power protection products (UPS and/or surge suppressors) in combination with this Network Dataline Surge Suppressor