Visit Amazon sites : http://www.amazon.com/gp/product/B005UKG4KU?tag=gallianostore-20
Sabrent USB 2.0 to HDMI Adpter for Multiple Monitors with HDMI/DVI Adapter up to 1920x1080/1600x1200
Connect three or more monitors to any brand of laptop or desktop one adapter required per monitor
Plug and play USB 20 connectivity to HDMI DVI monitors and projectors
Uses top-of-the-line DisplayLink DL-165 chip supporting resolutions up to 1920x10801600x1200
Windows 7Vista 3264 and XP 32-bit drivers via Windows Update download or disk
Linux and Mac beta-quality drivers available but with important limitations --details below