Rocstor Premium Multi Monitor USB-C to (1) DisplayPort™ and (1) HDMI Adapter allows you to connect two monitors to your MacBook®, MacBook® Pro, MacBook® Air, Dell™ Precision, Dell™ XPS, Notebook, Chromebook® or any other PC computer through a single USB-C or a Thunderbolt™ 3 port, Rocstor's innovative unique USB-C to DisplayPort and HDMI adapter supports mirror images and expanded images. That means you can display same image on two monitors or different images on two monitors, both at 4K resolutions. With this Rocstor Multi Monitor DisplayPort & HDMI adapter, you can work more effectively and efficiently from your laptop or desktop. You can simply connect your laptop or desktop directly to two monitors with (1) DisplayPort and (1) HDMI connection. With each display, you are able to receive a clear and crisp 4K image performance. The Multi-Stream Transport (MST) allows you to connect your Dell Precision or Dell XOS to a DisplayPort and an HDMI monitor thru the USB-C port. With this USB-C port, you do not need any additional power adapters, and the MST features are fully compatible with computers models such as Dell Precision™ and Dell XPS™ laptops Make no compromise with quality. Rocstor delivers the highest quality adapters and functionality. The Rocstor adapter works with no needed drivers or additional power source. It is built for Mac and PC computers running Mac or Windows 7, 8, or 10 operating systems. Simply connect your adapter to your host computer's USB-C or Thunderbolt™ 3 port and enjoy resolutions of up to 3840x2160 @60Hz on DisplayPort and 3840x2160 @30Hz on HDMI monitor. Each monitor is able to display a clear 2K or 4K image.. Backed by Rocstor 2-Year Warranty and free lifetime technical support. At a Glance: 1x DisplayPort 1.2 port, 3840x2160 @60Hz 3x HDMI, 3840x2160 @30Hz Powered through USB-C host device Aluminum Ultra-portable / Slim design