This adapter converts N64, GameCube, Super NES, SFC consoles composite analog video to digital HDMI for modern HDTV. It up-scale video to 1080p, both video and audio are integrated into the HDMI output, providing all-digital signal to HDTV. Plug and play, no external power needed, simply plug this adapter into your retro Nintendo console, then connect an HDMI cable from the converter to your HDTV, you can enjoy retro games on your modern HDTV. Also, video aspect ratio is easily selectable with a switch on the device, you can select 4:3 mode to avoid video being stretched to 16:9 on widescreen HDTV. Features Support N64, GameCube, Super NES, SFC consoles Converts and up-scales console composite signal to 1080p HDMI output Supports NTSC and PAL consoles Both video and audio are integrated into the HDMI output Support 4:3 and full screen mode with a toggle switch Plug and play, no external power needed Easy to install, compact and portable Specifications Model: CM461 Inputs: N64/NGC/SNES/SFC Composite output Outputs: HDMI AV Standard Support: PAL, NTSC HDMI Output: 1080p Dimensions: 60mm(W)x38mm(D)x 15mm(H) Weight: 40g Important Note The HDMI adapter only converts the composite video signal from the console, and can't improve the graphic quality, RGB signal from the console is not supported This HDMI adapter is powered by console itself, no external power needed If you can't see any video output, try to clean the console video output port, you can dip a cotton swab with alcohol and gently wipe the inside of the video port of the game console