@paul @futurebird Oh, this makes me so mad. I bought a bunch of similar adapters (actually the opposite, to connect a PS/2 mouse/keyboard to a PC's USB port, but the same soothing shade of aqua) and they just…didn't work. It turns out that they were strictly wire adapters, with no electronics to translate the protocol. So they only work with devices that are aware of the USB protocol, despite having only a PS/2 connector.