Yup. PS2 keyboard and mice are still easy to find. As are VGA monitors. If you are super paranoid, you still need something more, as both PS2 and VGA allow for

Yup. PS2 keyboard and mice are still easy to find. As are VGA monitors. If you are super paranoid, you still need something more, as both PS2 and VGA allow for bidirectional transfer. But, at a certain point you need to trust your supply chain. If someone can tamper with your new monitor, they can probably tamper with your new server as well. Even without compromising the host, you wouldn't want a monitor mirroring the output to an attacker, or a keyboard mirroring every stroke.