Tripp Lite's U244-001-HDMI-R, USB to HDMI Display Adapter, allows you to connect an additional monitor or HDTV to a computer/laptop USB 2.0 port. Up to six U244-001-HDMI-R 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. The U244-001-HDMI-R chip-set supports video resolutions up to 1920 x 1080 (60Hz), 1080p (60Hz). The U244-001-R is compatible with Windows 2000 and later, and Intel based Mac OS X 10.4 and later operating systems. 1 year limited warranty.