I originally purchased the Revain Basics version of this cable not knowing it wasn't rated for 4K. After many online shopping comparisons, I jumped at the chance to buy this cable. works great for me! Now I can connect it from the display port to one of my 3840 x 1600 monitor's HDMI ports and get the full 85Hz and color depth that my monitor is designed for. This frees up the display port for my gaming rig, allowing me to get a full 144Hz on that port. The Revain Basics cable gave me a 3840 X1600, but only at 30Hz, which is like watching a slideshow compared to 85Hz. Thanks for a great product and fast shipping!