Kensington Universal USB 3.0 Multi-Display Adapter K33974AM Type: USB to DVI Adapters Color: Black Specifications: Connect additional monitors to your laptop or Ultrabook via USB Supports MAC OSX from V10.6 (Leopard) right up to the latest Mountain Lion releases Now also compatible with the MicroSoft® Surface Pro USB 3.0 ensures fast streaming and superb picture quality USB 3.0 is ten times faster than standard USB connections Universally compatible with any brand or model of laptop or Ultrabook with USB Superior high-definition graphics supporting resolutions up to 2048x1152 Supports connection to monitors, projectors and HDTV screens Included DVI-VGA adapter for better flexibility Powered off the USB port of laptop — no external power needed Weight: 0.55