SMA female to UHF male
adapter. Gold-plated center pins and SMA female side.. Has an impedance of 50 ohms. This is very
popular due to a lot of ham radio antennas being replaced with the smaller and
newer SMA connectors. Good inter-series adapter item to have "in the shack"
this is an economical way to solve gender and connector type mismatches when
interconnecting coaxial antenna equipment.