This 5-meter (15 ft.) Mini Display Port to HDMI adapter cable offers a single-cable connection from your m DP equipped Microsoft Surface Pro, Mac Book or Ultrabook laptop to an HDMI display or projector. The passive adapter supports video resolutions up to Ultra HD 4K & is Thunderbolt compatible, when connected directly to a supporting Display Port over Thunderbolt I/O port. Astonishing picture quality This adapter cable works with your 4K HDMI display & video source to ensure you it maintains its astonishing picture quality, four times the resolution of 1080p, when converting Mini Display Port to HDMI. The adapter is also backward compatible with lower resolution displays & video sources. With support for high-definition resolutions of 1080p & 720p, you can future-proof your existing setup for 4K video. Hassle-free setup For the simplest & most discreet installation, this m DP to HDMI adapter connects directly from your Mini Display Port video source to the HDMI port on your display. It doesnt need a power source, unlike some converter dongles that require active power & separate video cabling.