Sabrent USB 2.0 to HDMI Adpter for Multiple Monitors with HDMI/DVI Adapter up to 1920x1080/1600x1200 Each (DisplayLink DL-165 Chipset) USB-HDMI Connect three or more monitors to any brand of laptop or desktop (one adapter required per monitor) Plug and play USB 2.0 connectivity to HDMI, DVI monitors and projectors Uses top-of-the-line DisplayLink DL-165 chip, supporting resolutions up to 1920x1080/1600x1200 Windows 7/Vista 32/64 and XP 32-bit drivers via Windows Update, download, or disk Linux and Mac beta-quality drivers available but with important limitations --details below