Development keyboard encoder board, It is very simple to become a developer now, DIY your machine! 104 keys keyboard, Provided by an extended circuit board. Designed for DIY game controllers, Comprising a lot of 5V power supply, easy to connect the LED lamp (red plug). Contains all media controls, Media, Mail, Calculator, Web, Search, My computer. Music control and web control. Compatible with Windows 10, Windows 8, Windows 7, Windows Vista, or Windows XP, Mac OS. Packing include： 1 x Development keyboard encoder board; 1 x USB cable; A few cable for DIY your machine.