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Rotary Joystick to USB: MAME Interface for 13 Pin Header - YouTube
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Amazon.com: ERYUE Volume Controller USB Audio Controller Knob, Adjuster Rotary Computer Speaker Control Switch for Win7/8/10/XP/Mac/Vista Android (Black) : Electronics
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Behringer BCR 2000 B-Control Rotary USB MIDI Controller- USED- Includes Box | eBay
