The Kensington Multi-Display Adapter means that you can expand your viewing options & add a secondary screen to your laptop, Ultrabook, Windows 8 tablet, Mac Book or other Apple computer. 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 Adapter uses a USB (Universal Serial Bus) 3.0 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 Adapter 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 Adapter 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 its universally compatible with any brand & model, including Ultrabooks. All you need is one USB (Universal Serial Bus) to add another display option.