One USB to 4-pin Captive Screw Terminal Connector, One 3.5 mm Stereo Mini Jack to Solder Tabs - Architectural Connectivity | Extron
3.5 mm Stereo Female Terminal Block 3 pin Audio Adapter - Electrical connectors - Power Cables - Cables and Sockets
Amazon.com: AAOTOKK 4 Pole 3.5mm Screw Terminal 3.5mm (1/8) Stereo TRRS Audio Male to AV 4 Pin Female Screw Terminal Double Track Headphone Balun Solderless Converter Adapter(5 Pack/Male) : Electronics
3.5mm Male to Screw Terminal Connector, Cable 2-Pack 1/8 Inch TRS Stereo Male Plug to 3 Pole Soldless Screw Block for AUX Cable, Speaker and Headphone Wire : Amazon.nl: Electronics & Photo
Episode® Electronics, 3.5mm Male Stereo to 3-Pin Screw Terminal Adapters, 10 pack
3.5mm Stereo Screw Terminal Panel Mount
3.5mm (1/8) 4-Pole (TRRS) Audio Jack Terminal Block : ID 2915 : $2.50 : Adafruit Industries, Unique & fun DIY electronics and kits