<b>Download Support Documents at [Technical Specification] on this page</br></b> 1. User manual and instructions</br> 2. Installing the latest RetroPie image with the Atari Games Card </br></br> Atari Ultimate Arcade Fightstick USB Dual Joystick with Trackball 2 Player Game Controller</br>Enjoy fierce fighting games with your friends and family using this 2-player fight stick with trackball. </br> Powered by a Raspberry Pi, the Ultimate Dual Fight Stick offers an all-in-one arcade experience in a small form factor. The included Micro Center Retro Gaming Atari SD Card allows you to get started right away with your favorite Atari games like Asteroids and Centipede. 2 joysticks and 16 buttons allow 2 players to compete head-to-head, and the trackball allows you to experience games like Missile Command with their original controls. Keyboard, mouse and internet connection are required to download full image.</br> The reliable joystick completes your experience with fast and precise input. </br></br> Specifications</br> 8 Buttons per player</br> 2 Joysticks with bat top</br> Powered by: Raspberry Pi 3B+</br> Storage: 32GB micro SD card preloaded over 100 Atari retro games</br> Dimensions: 28.34 x 7.28 x 5.70 inches</br> Weight: 17.6lbs</br></br> NOTE: </br> In simultaneous 2 player games both joysticks and sets of buttons will be used. </br> In alternate 2 player games only one joystick and set of buttons will be used. </br> Compatibility may vary based on game. Trackball not compatible with consoles.</br></br> What is in the box: </br> USB dual fight stick with trackball</br> Preinstalled Raspberry Pi 3B+ single board computer</br> 32GB MicroSD card reloaded 100+ Atari games</br> 6ft HDMI cable</br> Micro USB power supply with switch