Seller's Comments and Description:
"Connect three or more monitors to your laptop or desktop PC (one adapter required per monitor, up to 6 on Windows PCs)
Plug and play, extensible USB 3.0 and USB 2.0 connectivity. Widest possible monitor support via HDMI output and DVI adapter is included in box
DisplayLink DL-3500 chipset, supports resolutions up to 2048x1152 (1920x1080 with Analog VGA) Windows 8.1/8/7 32/64-bit and XP 32-bit drivers via Windows Update, download, or disk."