The LLTP18-B 18 Tablet / Laptop Charging Cart from Luxor is an ideal solution to charging and securing up to 18 laptops or tablets. The door locking system keeps the laptops secure while they are charging from the rear-mounted electrical strips. The lock comes with two sets of keys. Holes in the base of the cart allow passage of the two power-strip cables. Each shelf holds 9 laptops safely between padded dividers. The space between the dividers is 1.75" to accommodate most laptops and tablets. Ventilation holes through-out ensure a steady flow of air and prevent overheating while charging. A bottom storage space is provided for laptop accessories. The 4" rubber casters ensure smooth transport from place to place. Two of the casters are lockable to secure the cart in place. The cart comes fully assembled.