4K Mini DisplayPort to HDMI Adapter CableCreation Mini DP(Thunderbolt Port Compatible) to HDMI AV HDTV Male to Female Adaptor for Mac Book Imac, White Color Mini Displayport to HDMI Adapter: Supports 4K x 2K Resolutions. Mini DP Port supports DP v1.2, which is for 1.62 Gbps, 2.7 Gbps, 5.4 Gbps link rates; HDMI Port supports v1.4, and the resolution of 4Kx2K@30Hzcannot 4Kx2K@60Hz , 1920 x 12001080p(Full HD), 720p, and flawless audio pass-thru for uncompressed digital 7.1, 5.1 or 2 channels. Connection:Gold Plated contact, transmits both audio and video. Only support Mini DP input connected computer and HDMI output connected monitor, TV or projector, cannot be bidirectional. Power Sources from Mini DisplayPort Side to HDMII Port. Compatibility: Mini DisplayPort also compatible with Thunderbolt Port. Compatible with apple macbook (after 2010 Version with Audio) MacBook Pro, MacBook Air, iMac, Mac mini, Mac Pro; Microsoft Surface Pro/Pro 2/Pro 3 (NOT Surface for Windows RT); Lenovo ThinkPad X1 Carbon, X230/X240s, L430/L440/L530/L540, W530/W540, Helix; Dell XPS 13/14/15/17, Latitude E7240/E7440, Precision M3800; Alienware 14/17/18; Acer Aspire R7/S7/V5/V7; Intel NUC; Asus Zenbook; HP Envy 14/17; Google Chromebook Pixel etc Difference between Active and Passive: Passive only supports to connect one monitor, but active supports multi-monitors. This item is passive, please note. What You Get: Mini Displayport to HDMI Adapter x1, CableCreation 24-month product replacement warranty and lifetime friendly technical support. Any question, please feel free to contact us for help first.