What killed it, well after reviewing some PS4 gameplay I noticed that it was having audio issues, like it would allow some sounds but not all. It was almost as if it was receiving a 5.1 audio output but was missing the centre channel. Even though the PS4 was set to stereo.
After trying various cables, configs, and boxes. I narrowed it down to this box. Not sure what killed it, whether it’s just old, or that it’s been powered on for over 5 years straight. But its long service will never be forgotten in the hours of Netflix and Disney Plus it passed through to my recorder.
No name brand, if you find one that looks like it, it’ll work. Typical search terms are “hdmi splitter 1 in 2 out”, any with EDI switches are busts, like the one from UGREEN.
EDIT Also avoid any with buttons, this is a HDMI duplicator, as in 1 signal goes in, that signal get duplicated and sent out both ports. The ones with buttons switches inputs, so 1 HDMI in 1 HDMI out, the button just chooses which HDMI is being used. Great for monitors with only 1 HDMI input.