This standard laptop charging cart fits any tight budget. Store, charge and transport your laptops in either a 20 or 30-unit model. Your laptops will remain secure in roomy bays, thanks to a 2-point locking system. Carts ship assembled, so you can just roll it off the crate and go. The 20-unit cart comes with two locking doors with keyed locks and 2-point locking system, 18 shelves with cable ties to hold the charger, 20 interior power receptacles, one 13ft power cord with cable wraps, two external power receptacles, and four 5" casters (two directional-lock and two total-lock). The 30-unit cart comes with four locking doors with keyed locks and 2-point locking system, 28 shelves with cable ties to hold chargers, 30 interior power receptacles, 13-foot power cord with cable wraps, two external power receptacles, and four 5" casters (two directional-lock and two total-lock). Wide handles on each side of the cart make it easy to steer. Large 5" casters (two directional-lock and two total-lock) make the cart easy to maneuver in tight spaces.