Brand new These SMA male RF coaxial terminators are made of high quality brass for durability. They have good reliability, excellent performance and long service life. The impedance is 50 ohm, and frequency is wide between 0 to 6Ghz. Widely used for antennas, GPS system, base station application, cable assembly, electrical components, instruments, wireless communication system, telecommunication system, etc. There are total ten pieces of connectors in this set that you may use for many projects.