Description: USB3.1(Type-C) to VGA Multiport Adapter with USB2.0 Hub for connecting PC/Laptop to /VGA/-equipped monitors and displays. & output support up to 4K resolution (3840 x 2160 @ 30 Hz); backwards compatible to 1080P and 720P. Delivers audio and video. & VGA, & VGA ports can work at the same time, but the max resolution is 1080P while they works at the same time.(Note: & ports can't work at the same time) USB 2.0 port to connect and charge compatible devices and peripherals; USB data-transfer speed of up to 480 Mbps; maximum current output of 500mA. Compatible with Windows 10/8.1/8, OS and Chrome; Plug and Play - no drivers or power adapters required. Compatible: works with all New / Pro with USB-, Chrombook Pixel & output & support 4K 30Hz(3840x2160),down compatible 1080P, 720P +VGA, +VGA can work simultaneously +VGA, +VGA outputs can work at the same time, that allow connecting two extenal monitors simultaneously. But note that the max resolution is 1080P only while they are working simultaneously. USB port The adapter's USB 2.0 port can be used for charging and connecting compatible devices and peripherals Specification: 1x input /1x output /1x output /1x VGA output /1x USB 2.0 port Input/Output Resolution: : 3840 x 2160@30Hz, 1920 x 1080@60Hz, 1600 x 900@60Hz, 1360 x 768@60Hz, : 3840 x 2160@30Hz, 1920 x 1080@60Hz, 1600 x 900@60Hz, 1360 x 768@60Hz, 1280 x 960@60Hz, 1280 x 720@60Hz, VGA: 1920 x 1080@60Hz, 1600 x 900@60Hz, 1280 x 1024@60Hz, 1280 x 960@60Hz, Package Includes: 1 * conversion adapter