The 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. The newest version now supports Quad-View functionality with two Dual View KVM Switches connected. The new CS1644A features multi-view capabilities, which 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 120Hz 3D displaying,allowing you to manage various 3D visual effects. It 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, making it ideal for users who need delicate visual effects and multi-tasking on several computers. The CS1644A is perfect for graphic designers, banking and financial consultants, gamers and medical professionals- demanding a high quality switch that provides stunning color, clarity and functionality. One dual-screen USB console controls two/four dual-screen computers and two additional USB devices Multi-View Display – Easily connect two CS1642A/1644A's units for a second dual-screen setup controlled through a single connection Superior video quality – 2560 x 1600 at 60Hz (DVI Dual link); and 3D displays up to 1920 x 1200 at 120Hz (DVI Single link) Supports widescreen resolutions Independent switching of KVM, USB, and Audio focus DVI digital and analog monitor support – fully compliant with DVI specifications; and HDCP compliant Multiplatform support – Windows 2000/XP/Vista, Linux *, Mac, Sun,and FreeBSD Sun/Mac keyboard support and emulation ** Video DynaSync, exclusive ATEN technology, to eliminate boot-up display problems and optimizes resolution when switching between ports