Aten CS-22D- 2-Port USB DVI-D KVM Switch The CS22D 2-Port USB DVI KVM Switch is a control unit that allows access to two computers from a single USB and DVI console (keyboard, video and mouse). With the CS22D, you can access the computers conveniently via a Remote Port Selector. The CS22D´s compact all-in-one design makes it ideal for multiplatform desktop applications.