UV light santizes tablets and chromebooks while storing them in a locked up safe environment while they are being charged. Holds up to 32 tablets. Top of cart is perfect for a projector or laptop. Unit features four casters and a handle so it is easy to move. A built-in circuit breaker protects the devices against overloads. Charging Station Type: UV Charging Cart; Screen Size (Max): 15"; Device Capacity: 32; Charging Stations Compatible Devices: Chromebooks; Laptops; Tablets.