Learniture 24-Outlet Tablet Assembled Recharging Cart, Black, NOR-GNO1007A-SO Built-in electrical assembly lets you charge up to 24 devices (laptops, netbooks or tablets) at a time. Durable steel frame features ventilated panels to keep your laptops from overheating. Locking front and rear doors provide secure storage. 12 (11 height-adjustable) shelves let you create the most efficient arrangement for your devices. Compartment Dimensions: 23 1/4" W x 16" D x 32" H (cabinet floor to ceiling) Side handle and four non-marring, rubber casters (two locking), make it easy to move the cart between rooms.