Iirc having an old af keyboard in a gaming setup usually isn't beneficial at all due to them not being able to register more than 2 keys at a time
PS2 can handle N-key rollover, usually the niche brands have the most features as well, so we'll see.
I have one I got a year or two ago at Savers that I haven't been able to use yet because apparently oldschool mouse/keyboard connectors aren't what the kids are into these days. I'm hoping to be able to use it when I get my rig together. It fits perfectly with my '99 theme. The keyboard is made by Mouse Systems which is a kind of obscure company that was bought by a bigger company and hasn't really done much since. I got the keyboard because it looks comfy as forget and I had been hearing good things about mechanicals. I took off all the keycaps to clean it and haven't finished putting them back on since, so it got crud back in between the keys, oh well.