1pc RJ-45 Ethernet Cable Join Extension Converter Adapter Coupler Lightning Arrester Ethernet Surge Protector

Please install surge protector within 1 meter from device protected. The closer, the Better!! To prevent Routers and other connection equipment being struck by lightning To prevent the notebook being struck by lightning With 8 Lightning protection tube Protects your Ethernet device from the damage of lightning & surge. Easy to install. Install between Ethernet and the protected device Connectors: RJ-45 Material: shielded aluminum alloy Dimensions: (L*W*H)43*13*15mm Package includes:1pc Notes: Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon.