Rocstor Premium USB-C to Dual HDMI Multi Monitor Adapter - 4K 30Hz - USB Type- C 2-Port MST Hub - for Mac and Windows - 4Kx2K Resolutions up to 3840x2160 @ 30Hz - for MacBook Pro, Notebook/Desktop PC - USB-C to 2x HDMI Splitter - ALUMINUM DUAL HDMI ADAPTER 4K@30Hz MAC AND WINDOWS Rocstor Premium USB-C to Dual HDMI™ Adapter allows you to add two 4K HDMI™ 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 Dual HDMI 4K 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 Dual HDMI adapter, you can work more effectively and efficiently from your laptop, you can simply connect your laptop directly to two monitors with HDMI connection. With each display, you are able to receive a clear and crisp image up to 4K performance. The Multi-Stream Transport (MST) Hub allows you to connect two HDMI monitors to your host computer's 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 Dual HDMI adapter works with no needed drivers or additional power source. It is built for Mac and PC computers connecting on 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 @30Hz on two HDMI connected Displays. Each monitor is able to display a clear 2K or 4K images at 30Hz. Backed by Rocstor 2-Year Warranty and free lifetime technical support.