ConnectPRO Udv-12A-Plus-Kit - KVM/Audio/USB Switch - 2 Ports - Desktop, Black (UDV-12A+KIT) 100% compatible with USB HID devices (for USB DDM Ports) Front panel push-button for Easy Channel selection User select-able multi-hotkey (CTRL, shift, scroll lock, caps lock) Backlit push-button with multi-color LED for Easy monitoring and selection Buzzer sound for Channel switching confirmation on/off select-able