Geekworm Multifunction X600 Audio Expansion Board for Raspberry Pi 3 Model B, 2B and B Plus / Raspberry pi Music Player for Raspberry Pi This is X600 Expansion board, highly cost-effective multimedia function, No external power supply needed, perfectly for Raspberry Pi 3 Model B /Raspberry Pi 2 Model B, Raspberry Pi Model B+. Operating System: Raspbian Jessie / OSMC / Openelec / Volumio ...etc Powerful Audio & Video function: Allows you to extract audio signals from HDMI of your Raspberry Pi; Converts HDMI audio to digital optical or Coaxial or stereo RCA analog;The SPDIF optical or Coaxial audio output supports all audio formats up to 5.1CH Dolby Digital 5.1CH / AC3 & DTS 5.1CH audio;The SPDIF optical or Coaxial audio output supports all audio formats up to 5.1CH Dolby Digital 5.1CH / AC3 &DTS 5.1CH audio ... ect( For more details, please refer to [Audio & Video] on the page) Built in IR sensor (38KHz); Allows you to connect SATA devices to your Raspberry Pi; Misc: 1/Power output socket;2/Directly connected on top of the Raspberry Pi using the board GPIO header pins; 3/No wiring nor soldering is required; 4/Duplicated the 40-pin header of the R-Pi in order to support existing expansion boards.