I just bought the PS2 version from Take2.co.za and it is an awesome keyboard. It came with a PS2 - USB converter that works just fine on my laptop. Mainly I use a PS2 keyboard on my desktop PC. It was designed as a gaming keyboard where you can like press every key on the keyboard at the same time and all the keystrokes will get recorded. Apparently this will only work in PS2 mode as it has better throughput or something. I was not aware that they made a USB only version for this reason. Why do you need a USB connection? Will the converter not work for you?