Power Over Ethernet Adapters descriptions： We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. Ethernet Lan 1000mbps Rj-45 Surge Protector For Thunder&lightning Protection. Features: - Easy to Install. Install Between Ethernet and the Protected Device. - Protects Your Ethernet Device from the Damage of & Surge. - Connectors: RJ-45 RJ45 10/100/1000Mbps Female to Female , Just Plug Cable in and Ground 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: Metal - Connectors: RJ-45 - Dimensions: 80*38*24mm Package Includes: 1 Piece Gigabit Ethernet RJ-45 Surge Protection Device. . Products number : SOMONO157739