The outdoor lightning arrestor kit protects your network from lightning strikes and electrical surges. It is compatible with devices that have N-Type connectors. Use the Outdoor Lightning Arrestor Kit to connect a wireless device, such as TRENDnet's high power wireless outdoor PoE access point (TEW-455APBO), to an external antenna and protect your entire network from catastrophic electrical surges. Multiple lightning strike and bi-directional features provide power protection from unpredictable weather conditions. Installation is simple and fast.