A:AnswerNo, it's just a standard USB keboard with no inputs on board. That said, a USB multiport adapter/dongle is very inexpensive if you're short on USB ports. I'm using my mouse and this board on on, on a USB 2.0 port with no power issues.
A:AnswerYes — in general, you can use both the SteelSeries Apex 3 Full Size Wired Membrane Gaming Keyboard and the Razer DeathAdder Essential Optical Gaming Mouse on your PlayStation 5 for games like The Sims 4
A:AnswerI don’t think they can be. I found this “The Apex 3 uses proprietary keycaps that cannot be removed or replaced.”
Maybe check out mechanical keyboards like the Logitech G610