This is hdmi male to vga female adapter cable lets you connect standard analog monitor, projector, or lcd screenpower input: no need extral power, power supply from hdmi power. It has built in chip to transform the signal. Only work for hdmi to vga. It supports full-size high-definition resolution of 720p or 1080p. Suitable for most hdmi input device (like pc, dvd, ps3, xbox360, etc) and vga output device (like monitor, projectors, etc, but do not support hdcp devices) built-in chipset. Don't support audio output. Length: 240mm.