SMA Male to UHF SO-239 Female Adapter. Gold-plated with gold-plated center pins. Has an impedance of 50 ohms. This is very popular due to a lot of Ham Radios being replaced and Handi-talkies having 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. Warranty: 1 year against defects by www.wiredco.com