FEATURES : 

• 100% brand new and high quality.
• Ethernet network RJ45 surge protection.
• Protects your Ethernet device from the damage of lightning & surge.
• 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.
• Supports Ethernet card, Repeater, HUB, Switchboard, Router or other Ethernet devices.