unidirectional VGA to Micro HDMI Not support Micro HDMI to VGA It only converts from VGA (analog signal output ) to micro HDMI (digital signal). Active vga to micro hdmi cable with sound can NOT be used as a micro HDMI to VGA adapter cable. The USB connector MUST be connected to get power for the bulid-in active VGA-micro HDMI chipset. Plug and play no driver required. The cable supports video resolution up to 1920 x 1080/60Hz Supports 24-bit VGA to micro HDMI adaptor / lead transmit stereo audio via male 3.5 mm AUX Mini Jack 3.5 mm audio jack for simultaneous audio transfer eliminating the need for separate audio cablesIf you have any questions or concerns please feel free to contact our top customer support team we provide 18 months of after-sales service guarantee