ITEM NAME:PL259 UHF-J Male to SMA-K Female Connector RF Coax Radio Antenna Adapter #JT1 Product Description Description: PL259 UHF-J Male to SMA-K Female Connector RF Coaxial Coax Radio Antenna Adapter Converter Plug Feature: Pure Copper Material/Low Attenuation/Difficult Oxidation/Wide Application Range. Usually used in radio frequency applications, antennas, WLAN devices, coaxial cables, Wi-Fi radio external antennas, > 1000 service life. Specification: Net weight: 24g Gross weight: 30g Packaging size: 80*50*20mm/3.14*1.96*0.78'' Impedance: 50 ohms Connector material: pure brass, good connection. (non-alloy) Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Included: 1 x UHF-J Male to SMA-K Female Connector.Included: 1 x UHF-J Male to SMA-K Female Connector. Gross weight: 30g. Usually used in radio frequency applications, antennas, WLAN devices, coaxial cables, Wi-Fi radio external antennas, > 1000 service life.