SO239 bulkhead coaxial connector | Impedance:50 Ohm | Body Plating:Nickel-plated | Frequency Range:3GHz | >1000 Times Mating Life Time | Package included: 3pcs SO239 (UHF female) Nut bulkhead solder connectors | Applications: Widely used for CB radios, antenna switch, public address systems, audio, video, mobile radio, and test equipment,antennas, broadcast, Wi-Fi, telecom, coaxial cable, wireless LAN Devices, CCTV, Microwave Applications and Digital Communication System | Never worry about any security problems. We are confident in the quality of our connector and willing to provide 1 MONTHS Replacement Warranty and 100% Satisfaction Guarantee. If you unfortunately get a defective one, please contact our customer support