This RJ45 Surge Protector is suitable to Ethernet based systems which protects the electric network shocked by the thunder or surge over voltage.SE-NW-SP-2 protects network workstations, printers and inter networking devices from surges present on 10/100/1000 Base-T sysem.Convenient RJ45 input and output connections make for simple installation (RJ45 input/output connections, pins 1-8, 7.5V clamping)Surge suppression utilizing high speed avalanche diodes divert excess energies on the network to groundZero insertion lossMaterial: High grade plastic and PCBWorking Temperature: -10~+55 C DegreeTypical ApplicationsIdeal for the protection of network workstations, printers and other internetworking devices with a network Ethernet connectionIdeal for NICs, terminals, hubs, MAUs, LAN equipment 1 x Network surge protector Check out our other items!On Jan-20-14 at 08:28:29 PST, seller added the following information: