You may need to search for a splitter with 4K 120Hz support, or else step your gaming down to 1080p. Likewise, if one of your outputs is an 8K TV, you'll probably want an 8K-ready splitter.

Multi Purpose – This Digital Coax Splitter Is Designed For Use With Hd Tv Signals, Satellite Tv, And High Speed Internet Modems As Well As Cable Tv, Amplified Antennas, Amplifiers, And Other ...