Tripp Lite's U244-001-HDMI-R USB to HDMI Multi Monitor External Video Adapter allows you to connect an additional monitor or HDTV to a computer/laptop's USB 2.0 port. Up to six adapters can be used simultaneously, allowing the user to connect up to six additional monitors/TV's to a single computer. Once the installation is done, the computer screen appears on the add-on monitor(s) without the hassle of function keys to swap to a second monitor. Supports computer video resolutions up to 1920 x 1200, and HD resolutions up to 1080p (60Hz). Compatible with Windows 2000 and later, and Intel based Mac OS X 10.4 and later operating systems.