Thunderbolt to HDMI, ICZI 4K Mini DisplayPort to HDMI (Mini DP) Adapter for MacBook, Chromebook Pixel, Surface Pro, HDTVs, Monitors, Projectors and More, 4K, Black Light weight and portable adapter for connecting a Mini DisplayPort (Mini DP or mDP)/Thunderbolt 2 port compatible computer to an HDTV, monitor, or projector with HDMI; A separate HDMI cable (sold separately in ICZI) is required. Compatible with HDMI 2.0, Supports 4K (3840x2160) Ultra HD resolution and uncompressed digital 7.1, 5.1 or 2 audio channels. this 4K ready MINI DisplayPort to HDMI adapter brings crystal clear image to your digital life. Support DisplayPort 1.2 and 4 lanes at 1.62Gbps ,2.7 Gbps and 5.4 Gbps. Low-profile connector does not block adjacent ports on your computer, has molded strain-relief for long life, and has ergonomically designed treads for easy plugging and unplugging. ICZI supports 30 days free return and 2-year Worry-Free Warranty. If you meet any question, please contact us at iczi_support@yeah.net, we will fix your issue within 24 hours.