Support Mirror and Extend Display USB 3.0 2.0 to HD 4K VGA HDTV Adapter USB Video Converter for Laptop ComputerUSB3.0 to HDMI and VGA allows you to connect from your USB3.0 Windows Computers or MacOS Computer to your external Displays with HDMI and VGA.HDMI and VGA Can be connected at the same time, but these two monitors can only display same view (mirror).USB3.0 Male Port Max Data transmiions Rate 5gbps,Backward compatible with USB2.0 Ports, Providing high speed transmiions.HDMI Female Port, providing a HD Resolution of 1920x1080 (If you connect USB2.0 to your Output Computers, only 800*600 resolution can be supported)VGA Female Port, providing a HD Resolution of 1920x1080 (If you connect USB2.0 to your Output Computers, only 800*600 resolution can be supported)USB 3.0 adapter support HDMI & VGA ports to work Simultaneously, to implement the synchronization and extend display, convenient for you to do work/entertain at two different external displays, which is super practical for meeting and family entertainment.The adaptor needs to install driver which built into the adapter, it will promote a driver automatically when connected, then you only take a few seconds to follow the step and install, Do not need repeated installation, simply to use.Steps: after plugging it into your computer, you will see there is a new USB device folder on your computer, then open it and double click to install the driver.Make use of the high-bandwidth (5 Gbps) SuperSpeed USB 3.0 interface. And also compatible with USB 2.0. Support for hot-pluggable devices (Only USB 3.0 interface can achieve resolution up to 1920x1080 p, if use USB 2.0 port, just can be 800 x 600p).Portable USB3.0 adapter is lightweight to carry into your laptop bag on a busine trip. You can extend the computer screen to a large screen display or projector, set up duplication (mirroring), use it for presentation with a projector etc, work in a large screen workspace, or use USB to VGA adapter to mirror display movies in the claroom.Compatible OS:Windows 7 or later.Support Mac OS versions:High Sierra(10.13.4-10.13.6) Clone Mode OnlyHigh Sierra(10.13-10.13.3)Sierra(10.12) EI Capitian(10.11)No Mirror ModeNote:The adapter only can support OS/MacBook 10.11,10.12,10.13.1-3,10.13.2 and 10.13.4-10.13.6How to use:1. Please plug this usb3.0 vga hdmi adapter to your computer/laptop directly.2. While plug this adapter into your computer, you;ll see there is a new USB device folder in your computer, then double clicks to install the driver.Note : if the driver does not showed, please close your Firewall Settings on your computer.If you will use two different brand display monitor output, please follow the steps :1. Plug in HDMI port first2. Connect USB port unle the screen appears normal3. Plugin VGA in finally.4. After you get everything ready, it will take 5-10 seconds to connect from your computer to external monitor automatically. Package Included: 1 x USB 3.0 to HDMI / VGA adapter