Liztek GA-2600V USB to VGA Video Graphics Adapter Card Connect three or more monitors to your laptop or desktop PC (one adapter required per monitor, up to 6 total monitors on Windows PCs) Mirror displays or create large desktop spanning displays, with any VGA monitor or projector DisplayLink DL-165 chip, up to 1920x1080 / 1600x1200 on higher-resolution monitors Windows 8.1/8/7 32/64 and XP 32-bit drivers via Windows Update, download, or disk Mac 10.9 "Mavericks" not supported due to significant limitations in the operating system. Linux beta-quality drivers available but with important limitations--details below