Each encoder can support one joystick. Use them to DIY your own Arcade game machine. The Zero Delay USB Arcade Encoder is a fully compatible plug and play solution, simply plug in your joystick and buttons into the encoder, plug the USB cable into the Pi, map your buttons in RetroPi and away you go – it really is that easy! You can use multiple encoders at the same time, so they’re great for multiplayer arcade machines! Specifications Joystick Size: Approx. 95x60x100mmEncoder Board Size: Approx. 85x35mmUSB Cable Length: Approx. 1.8mColour: one set Red and one set BlackWe have tested this unit on Raspberry Pi using Retropie and a Windows 7 PC using MAME.What’s in the box?This kit contains two sets of the following:1 x Encoder Board1 x USB Cable1 x 5 pin Cable for Joystick1 x 5 Pin Joystick8 x 30mm Push Buttons2 x 24mm Push Buttons10 x Cables for ButtonsResourcesGet Retropie on the Raspberry PiThePiHut setup guide