CN057S This RJ45 Surge Protector is suitable to Ethernet based systems which protects the electric network shocked by the thunder or surge over voltage. Integral ground line to divert surge energy. Large electric current support， multiple level protection， quickly response， minor wastage when employing this RJ45 Protector. All metal cast aluminum enclosure and RJ45 connectors provide for good EMI noise suppression. Use this Ethernet Protector to make sure system and equipment's safety when surge come from thunderbolt. Working environment: RJ45， compatible with 10BaseT， 100BaseT， Ethernet network and Token ring network. DC clamp voltage: 8V 50mA per line. Series resistance: 0.45Ω. Response latency: .1us. Plug Type: RJ45  Insertion Loss: ≤0.4dB to 100M. Package Details Weight: 176.55 g Size: 14.5*8.7*4.5 cm Package Includes 1 × Ethernet Surge Protector