I have said it before and I will say it again. For boxing more than 1 computer, PS/2 is far better than USB. Nothing out there changes things. Do some searches if you don't believe me. USB HID (N52, keyboards, X-keys, etc) has inherent limitations. USB gamepad might be a winner but nobody makes USB gamepad keyboards. And nobody multicasts them either.

PS/2 was DESIGNED for keyboard use. In 1987. They are STILL found on motherboards today. USB keyboards work, sure, but for boxing you have simultaneous keypress limitations. Among other things (can't reliably multicast, etc).

There is a reason PS/2 has hung around.

And a reason many "gaming" keyboards still use it.

http://www.steelseries.com/news/pres...aming_keyboard

USB can be extended to 5 meters (16.5 feet). Without hubs or repeaters. PS/2 should be closer to 50 feet or more.