Power 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

Power 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