Extend your workspace with Plugable's USB 3.0 2K HDMI Video Graphics Adapter Featuring the DisplayLink DL-3500 graphics chipset, the Plugable UGA-2KHDMI allows you to an additional HDMI monitor to virtually any Windows laptop, desktop, tablet or macOS (one adapter required per monitor, up to six on Windows PCs and up to four on macOS). Multitask with a dedicated monitor for each document or application. Multiple Displays Connect multiple USB 3.0 display adapters to your computer to expand your screen space by up to six additional 2560x1440 displays. Note: 1440p displays will operate at 50Hz refresh rate. 1080p and lower modes will refresh at 60Hz. Boost Productivity If you're doing information work; looking at one document while editing another, researching, or generally working on several things at once, having multiple displays is indispensable. Compact and Portable Easily stows in any backpack or laptop bag, taking up roughly the same space as a pack of playing cards, no external power adapter needed.