Features: brand new and high quality Antenna adapter UHF female SO239 connector, it is low-loss. Come in handy for many projects which involves UHF Type connector. Used coax cable with the pl259 connector when making a antenna with it. Application for Antennas, Wireless LAN Devices , Coaxial cable, Wi-Fi, Radios, External Antenna, Broadcast, Telecom, CCTV, Microwave Applications, Digital Communication System and so on. Made of metal materia with nickel plated surface treatment. Specifications: Material:Metal Model: UHF series Type: Radio Frequency Coaxial (RF) Operating frequency: low interface Type: Panel Mount, Panel Mount Number of needles: 4 holes Category: Connectors, Interconnects Family: Coaxial, RF Cable Series: Between Series UHF Impedance: 50ohm Size:Approx.9.1cm/3.58 inches Package Includes: 1x Mount Connector note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.