The Wilson 850050 Lightning Surge Protector with N-Female Connectors, 6GHz, 50Ohms is a lightning surge protector used in a Wilson/weBoost cellular signal-booster RF distribution system, splitting, tapping, or conditioning the amplified signal as it's routed from the booster to multiple antennas or coverage zones. It's a system-design component, specified to the exact amplifier and antenna configuration it's installed into.