The Structure Series 24-Device Tablet Charging Cart from Learniture has a durable steel frame with ventilated panels that keep your devices from overheating. A non-skid top surface offers a stable place for presentation equipment, and locking front and rear doors provide secure storage. Height-adjustable shelves let you create the most efficient arrangement for your devices. The side handle and four non-marring, rubber casters – two locking – make it easy to move the cart between rooms. A built-in electrical assembly lets you charge up to 24 tablets at a time.