ConnectPRO 4-Port USB KVM Switch UR-14-KIT Connects 4 USB computers and shares 4 USB peripherals. Enhanced functionality. Cross-platform compatible USB KVM switch with MAC and Windows systems. Supports All-time Full DDC. Reads EDID information from the attached screen and stores it in nonvolatile memory.Avoids boot problems from missing DDC information.Ideal for any application that does not provide DDC or EDID data. Plug-and-Play operation and faster KVM switching Additional front USB ports for device sharing