The Aten CS1644A 4-Port USB DVI Dual View KVMP Switch is a multi-application device that integrates a 4-port KVM switch with 2-port USB hub and supports quadview functionality with two dual view KVM switches connected. The multi-view capabilities allow two switches to be daisy chained for a dual, triple, or quadview display across multi-monitor installations.The CS1644A supports advanced nVidia 3D Vision ready 120 Hz 3D displaying, permitting you to manage various 3D visual effects. It also allows you to manipulate all connected computers from a single console to save resources and work space. It enables each computer to access connected peripherals on a one-computer-at-a-time basis, gearing it towards users who need delicate visual effects and multi-tasking on several computers. The CS1644A is also intended for use by graphic designers, banking and financial consultants, gamers, and medical professionals.