My monitor is 3840x1600( has DP, mDP, & HDMI 2.0 inputs) Apple is very vague about what cable is needed to drive this from my iMac https://support.apple.com/en-us/HT206587 Single-Stream (SST) displays Most single-stream 4K displays are supported at 30Hz operation. With OS X Yosemite v10.10.3 and later, most single-stream 4K (3840x2160) displays are supported at 60Hz operation on the following Mac computers: MacBook Pro (Retina, 13-inch, Early 2015) and later MacBook Pro (Retina, 15-inch, Mid 2014) and later Mac Pro (Late 2013) iMac (27-inch, Late 2013) and later MacBook Air (Early 2015) Will any 1.2 compatible mini display port cable work? Do I need an mdp-->active HDMI 2.0? There so not seem to sell any cable/adapters to do this in the store. Anyone have any experience with this?