The Kensington Multi-Display Adaptor means that you can expand your viewing options & add a secondary screen to your laptop Ultrabook or Windows 8 tablet It allows a secondary display to increase your productivity or give you the confidence when presenting that you can connect to any projector or TV screen via a single USB (Universal Serial Bus) For instant connectivity & superb picture quality between laptop & additional display the Kensington Universal Multi-Display Adaptor uses a USB30 Super Speed connection Research has shown that using multiple monitors can increase productivity by up to 50 Common tasks such as copying & pasting are greatly enhanced with fewer errors thanks to not having to juggle or tab through your open windows within one display The Kensington Multi-Display Adaptor makes adding that extra screen easy Simply connect one end to the monitor & the other to your laptop or Ultrabook USB (Universal Serial Bus) port The Universal Multi-Display Adaptor can also be used on projectors or HDTV screens using the included DVI-VGA adapter allowing display on any device with up to 2048x 1152 pixel resolution or 1080p for video playback Using USB (Universal Serial Bus) means it&s universally compatible with any brand & model including Ultrabooks All you need is one USB (Universal Serial Bus) to add another display option