Got home from work, tested with the X, and it works, although NO HDR. This is the one that I bought, I was wrong on the brand for the 4K. They appear to have replaced it with another product though as you may notice from the link redirecting. I looked it up in my order history though that's the original description and link:

LANIAKEA HDMI splitter (1 in 2 Out) Ultra HD Amplified Powered Splitter and Signal Distributor Support 4K x 2K 3D 1080P HDTV, HDCP 1.4 Protocol Compliant

https://www.amazon.com/gp/product/B01M1KMZNO/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1