VGA to HDMI with Audio: VGA to HDMI Adapter 25cm cable offers you a convenient way to connect PC, Notebook, Desktop computer that with VGA output (D-Sub, HD 15 pin) to displays with HDMI Input such as projector, monitor, HDTV. Please Note: It only works for VGA to HDMI, Can not be used as HDMI to VGA cable. And it needs to be Powered up by 5V USB power first when you used it. Supports Video and Audio Synchronously: This adapter is plug-and-play, no need any software driver. It included 5V USB Power Port and 3.5 mm audio Aux cable. So you can enjoy HDMI input with Audio and Video at the same time. High Resolution Support: The VGA input resolution up to 1920x1080; Transmit stereo audio via male 3.5mm Aux Mini Jack. HDMI output supports video resolution up to 1920 x 1080/60Hz. Its Work Only Unidirectional-Only transfer the VGA analog signal to HDMI digital signal; It is NOT a bi-directional cable and cannot transmit signals from HDMI to VGA.so you won’ t be able to use this in reverse. Wide Compatibility: The VGA-HDMI adapter is compatible with old-styled notebooks, desktops, laptops which only has VGA ports to any HDMI equipped devices.