Description: Protects your Ethernet device from the damage of lightning & surge. Easy to install. Install between Ethernet and the protected device. Connectors: RJ45 10/100Mbps Network device. The IN end is connected to the lead, the OUT end is connected to the protected device, and the IN end and the OUT end are not bundled together. When wiring, ensure that the electrical characteristics of the access line are consistent with the terminal identification, the RJ45 interface links the network line, and the PE links the ground line. Specification: Material: Plastic & Metal Size: 87x60x17mm Package Includes: 1 Piece Surge Protection Device