Electronic coded lock uses a reprogrammable administrative and user password and features an emergency back-up with security key. Laptop storage cabinets interior measures 3D when closed. Platform measures 16-1/2W x 12-1/4D and is cushioned to protect laptops. Platform straps keep laptop securely in place when closed. Electronic lock cabinet includes a 1-1/2 diameter cable management opening. Gray finish. Laptop cabinet measures 19-3/4W x 4-3/4D x 15-3/4H. This item requires 4-AA batteries sold separately.