>>106406458
Looks like they use the most common balanced 3.5mm TRRS pinout, so the vast majority of 3.5mm TRRS to 4.4mm cables should be perfectly fine. You'll probably want to look for a somewhat slim jack on the headphone side to make sure it fits the hole in the cups.
Material and shielding isn't gonna make an audible difference.
Apparently the Hifiman Deva, Audeze MM-100 and Fostex T60RP use the same connector, so if you can't find anything for the T50RP mk4 specifically, try searching for those instead.