Fully Assembled Charging Cart: This large charging station will arrive to you assembled out of the box! All you need to attach are the wheels and wire racks, then you can charge 30 devices in this mobile computer charging storage cart. Up To 14-Inch Laptop: Our tablet charging cabinet can hold tablet computer up to 14'' screen and 1.5'' thick, making this lockable cart for classroom the ideal compact utility cart for Chromebook, iPad, and laptop with case and covers.