brand new and high quality Please install surge protector within 1 meter from device protected. The closer, the Better To prevent Routers and other connection equipment being struck To prevent the notebook being struck With 8 for protection tube Protects your Ethernet device from the damage of surge. Easy to install. Install between Ethernet and the protected device Connectors: RJ-45 Material: shielded aluminum alloy Dimensions: (LxWxH)4.50x2.60x2.50cm/1.77"x1.02"x0.98" Supports Ethernet card, Repeater, HUB, Switchboard, Router or other Ethernet devices Quantity:1Pc Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1Pc x Ethernet RJ-45 Surge for Protection Device(no retail package)