This 5-meter (15 ft.) Mini Display Port to HDMI adapter cable offers a single-cable connection from your mDP 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 and 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 and video source to ensure you it maintains it s 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 and video sources. With support for high-definition resolutions of 1080p and 720p, you can future-proof your existing setup for 4K video. Hassle-free setup For the simplest and most discreet installation, this mDP to HDMI adapter connects directly from your Mini Display Port video source to the HDMI port on your display. It doesn t need a power source, unlike some converter dongles that require active power and separate video cabling.