The JUA254 USB to HDMI Multi-Monitor Adapter functions as an external graphics card, allowing users to connect additional displays via an HDMI connection without the need for lengthy setup or additional hardware installation. The USB 3.0 Display Adapter can support up to four displays running on the same computer, transforming your workstation into a fully functional multi-display powerhouse. This USB adapter acts as an external graphics card, providing instant additional displays without having to open the computer case or install an external graphics card. You can have a second monitor with an extended display, a mirrored display, or a rotated display (rotation mode not available for Mac), or make it your primary monitor. Enjoy true 1080p HD resolution on any Windows or Mac computer with a USB 3.0 port. These adapters are also backward compatible with USB 2.0 resolutions and playback, making them ideal for office applications. With the simple plug-and-play feature, you can connect your computer to a second monitor or projector within seconds, creating a new visual environment on Windows 10.