ATEN`s 4-Port KVM Switch features the latest in micro-design and technology. Setup is fast and easy simply plug cables into their appropriate ports. We have arranged the 4 PS/2 console ports on the front of the unit, for easy and convenient access. ATEN`s CS84A provides two convenient methods to access the connected computers use push-button selection switches located on the unit's front panel or type hot Key combinations from the keyboard.