The A050-000-ST-KJ RCA Female Audio to Screw Terminal Keystone Jack Kit snaps easily into the cutout of a wall plate or patch panel to create an RCA stereo audio connection. Compatible with 18 to 30 AWG speaker wire, the A050-000-ST-KJ features molded nickel-plated connectors. Color-coded screw terminals allow clean and easy rear termination with no soldering or special tools required.