It has standard 50 Ohm with N-Female to N-Female coaxial connectors. It is a coaxial N Surge Protector, operates over the frequency range of 0-3 GHz. Designed to be placed between amplifier and outside antenna cable connection, need to be grounded. (DC Pass) It is ideal for protecting 50 Ohm 2G 3G 4G LTE Cell Boosters and Antennas, as well as 900MHz and 2.4GHz WiFi Access Points and Routers. Material: Body: brass nickel plated Pin: Body brass gold plated Insulator: Teflon(PTFE) Specifications: Connectors: N Female to N Female Impedance: 50 ohm, specifically for 50 ohm systems VSWR: =1.2 Insertion Loss: =0.2dB Frequency Range: DC - 3 GHz Temperature range: -40°C to +85 °C Insulation Resistance: = 5000M? Durability: = 500 cycles Contact Resistance: Center conductor = 1.5m?, Outer conductor = 1m? Package Include: 1pc N Female to Female Lightning Arrestor surge protector

Installed as close as possible to the equipment to be protected, also could be installed near the antenna for additional protection. It has a replaceable gas discharge element with High Surge Power Capability ( 90V Gas tube). Operating Frequency DC-3 GHz, DC Pass for Remote Powering. Low Loss and VSWR and 50 Ohms Impedance. Lightning Arrestor N Female to N Female Connectors.