The CS1644 USB (Universal Serial Bus) 2.0 DVI Dual View KVMP™ Switch charts a revolutionary new direction in KVM (Keyboard, Video, Mouse) switch functionality by combining a 4-port KVM switch with a 2-port USB (Universal Serial Bus) 2.0 hub at the same time as providing dual-screen support for two DVI displays, making it ideal for graphic designers, banking & finance consultants, medical applications, & gamers. Moreover it carries advanced features, such as n Vidia 3D Vision ready 120 Hz 3D display support, gaming keyboard compatibility & port selection/switching using a mouse, aimed at giving you flexibility, convenience & enjoyment. As a KVM switch, it allows users to access four computers with dual-screen support from a single USB (Universal Serial Bus) keyboard, USB (Universal Serial Bus) mouse, & dual-screen console. As a USB (Universal Serial Bus) hub, it permits each computer to access any peripherals connected to the hub on a "one computer at a time" basis. 4-port DVI Dual View KVMP switch with USB (Universal Serial Bus) 2.0 support & 2.1 channel surround sound audio One dual-screen USB (Universal Serial Bus) console controls four dual-screen computers & two additional USB (Universal Serial Bus) devices 2-port USB (Universal Serial Bus) 2.0 hub built in Fully compliant with the USB (Universal Serial Bus) 2.0 specification