I purchased a 50' Cable to run from my 4K Security Camera NVR to to our 4K TV in the Living Room. It works just fine. My TV display settings shows 2160p and the NVR is set to display 3840 x 2160 x 60Hz. I also purchased a 75' version with a booster in the middle to run from the NVR to my 4K TV in my Home Office. Same results. It works great.Here is the link to the Splitter I use from my NVR to the two cameras. I"ll eventually run another 50' cable from my NVR to the TV in the Master Bedroom. The splitter isn't dirt cheap but it works fine with so far with one 4K NVR signal going to two 4K TVs. Hopefully it'll still work going to three 4K TVs.https://www.amazon.com/gp/product/B079HN327D/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
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