Review on 🔌 Club3D CAC-1070 Displayport 1.2 to HDMI 2.0 UHD Active Adapter - VESA Certified for 4096X2160 60Hz Support by Matthew Harris

This is listed as supporting resolutions up to 3840 x 2160 but I can confirm that it is 4096 x 2160 provides 60Hz 4:4:4 output to an HDMI input that supports it (HDMI 2.0). When purchasing this item, please ensure that all other items required for 4K@60Hz resolution are present. First, you need a graphics card with Displayport 1.2 output and drivers that support 4K@60hz output with 4:4:4 subsampling over Displayport. I know current AMD drivers support this. I can confirm that this works for the Fury series of cards. If you plan to play at 4K resolution and expect 60 fps, you'll need at least a Fury card for that. If you're using an old 7970 or R9 290 or something similar, you probably won't benefit from this adapter other than a smoother desktop mouse pointer. Also keep in mind that not all 4K TVs are created equal. Some TVs will not display 60Hz over a single HDMI connection, some will only have one available HDMI 2.0 port (my LG 43UF6430 only has one that supports 4K at 60Hz), some TVs will not support 4:4:4 subsampling nor will they synchronize when they receive this signal. You're more likely to need a newer 4K TV than a cheap basket model, as these usually skimp on the internal components required for this type of setup. So please do your research before buying this product and make sure you create a cohesive ecosystem that supports 4K at 60Hz before judging this device like others here have done.