Supports HDMI resolutions up to 4K at 3840 x 2160 @ 60 Hz; VGA resolutions up to 1920 x 1200 or 1080P @ 60 Hz. Supports Mirror and Extended modes. When connected to both the VGA and HDMI only Mirror mode is supported with a resolution up to 1920 x 1080 @ 60 Hz; Extended mode is not supported. The HDMI port transfers audio and video the VGA port transfers video. Plug-and-play no drivers or software required. No external power supply needed. You can use it anytime anywhereThe JCA174 is a lightweight and portable adapter that connects a USB Type-C to an HDMI and VGA monitor or projector through an HDMI and a VGA cable.