Features: Compatible SEGA Mega Drive/for Atari Game Controllers USB Adapter for Raspberry Pi/for Mister FPGA/PC. This small form-factor USB adapter makes it possible to use two controllers for SEGA MD, CD32, NES, SNES, PCE on your PC using one USB port (for Windows, for -Mac OS X, Linux), Raspberry PI or for MiSTer. The adapter has a native 1ms/1000Hz polling rate so input lag is minimal (average less than 1ms with a wired 3-button controller). It works with original and third party gamepads for Genesis/Mega Drive 3- and 6-button, including the M30 2.4GHz wireless controller. All of the buttons on the gamepad for Amiga CD32 are supported, also third party controllers for Amiga CD32 are supported. Commodore / Amiga / for Atari 1- or 2-button joysticks will also work fine with this adapter, including possible turbo-fire functionality of those joysticks. Works with original and third party controllers for PC Engine / TurboGrafx-16. It works with original and third party gamepads for SNES/for SFC , including the NTT Data Keypad for Super for Famicom. Package Includes: 1 Piece Handle USB Adapter or 1 Piece Development Board(optional) Specifications: Material: Printed Circuit Board Type: for MD, for CD32, for NES, for SNES, for PCE, for Arduino Pro Micro Development Board(optional) USB Adapter: Approx. 8x6 for cm/3.15x2.36 inch note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.