Tendak Mini DisplayPort/Thunderbolt to AV 3RCA Composite Video R/L Audio S-Video Output Converter Adapter Cable Mini Displayport + USB + 3.5mm audio to composite video and s-video converter displaying on CRT/LCD TV Compatible video sources devices with Mini DisplayPort interface / Thunderbolt Support Mini DisplayPort input resolution: 640x480(60Hz); 800x600(60Hz); 1024x768(60Hz); 1024x768(60Hz); 1280x720(60Hz); 1280x1024(60Hz) Easy to Use:Installs in seconds, no settings and it is a resolution pass-through converter Powered by DC5V USB cable with LED indicator