Aten 8-Port USB DVI Dual Link KVM Switch (CS1788) One USB console controls eight Dual Link DVI or VGA computers and two additional USB 2.0 devices Supports both digital (DVI) and analog (VGA) video - mixed operation possible Cascadable to three levels - control up to 512 computers Multi-view feature - stack up to four CS1788 units and display video from up to four monitors (dual view / triple view / quad view) 2-port USB 2.0 hub built in Fully compliant with the USB 2.0 specification Computer selection via front panel pushbuttons, hotkeys, and multilingual on-screen display (OSD)