Cable Box Designed to Go with Presentation Switcher Provides Quick and Easy Access to AV Cables. Providing 3 Cables: USB-C, HDMI IN+USB Host Cable. Offer Dual Input Channels: 1xUSB-C/1xHDMI+USB-B. Perfectly Suited to Integrate with Presentation Switcher. Cut-out Hole: 82*82mm. Integrated Cable Management for Clean Work Space. Plug and Play. Ideal for Conference and Meeting Rooms.