Protects your Ethernet device from the damage of and surge. Used to protect the coaxial data transmission of network communication circuit system, such as computer network communicationsystem, repeater, switchboard, rounter and other ethernet devices. Easy to install. Install between Ethernet and the protected device first, "IN" end is for input and "OUT" end is for output to the protected device, then set ground wire well and straight. Product Name : Surge Protector Arrester Connector Type : RJ45 Rated Discharge Current (Isn) : 5 KA Max. Discharge Current(I) : 10 KA Data Transfer Rate : 100MHz Wire Length : 26cm or 10.2inch Dimension : 7.9 x 2.5 x 2.5cm or 3.1inch x 1inch x 1inch (LxWxH) Color : Black, Silver Tone Material : Aluminum, Plastic Net Weight : 70g Package Content: 1 x Surge Protector Arrester Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.