General Information Master-IT USB+ uses breakthrough technologies which allow for flexibility and functionality never before seen in a KVM switch. The built-in USB DDM prevents interruptions in communication between shared devices and connected systems /computers. By DDM technology, switching ports without any lag time occurred can raise the efficiency and compatibility of KVM switch. UD-14-PLUS+ embedded DDM Technology can 100% maintain the compatibility of the shared devices and connected systems. UD-14-PLUS+ becomes the most reliable and robust DVI KVM switch in the world., The UD-14-PLUS, as with all ConnectPRO KVM switches, features all-the-time active DDC/EDID communication, which makes this switch Windows 7 compatible. Technical Information Number of Computers Supported: 4 Maximum Operating Distance: 16.40 ft Video Graphic Mode: WUXGA Maximum Video Resolution: 1920 x 1200 Interfaces/Ports USB: Yes DVI: Yes Number of USB Ports: 8 Number of DVI Ports: 5 Power Description Input Voltage: 5 V DC Physical Characteristics Form Factor: Desktop Height: 1.7″ Width: 10.8″ Depth: 5.2″ Weight (Approximate): 2.54 lb Product images may differ from actual product appearance.