The LLTM30-B-RFID is a Tablet charging station Which will hold up to 30 Tablets it comes fully assembled. The top padded surface is 19 7/8in.W x 19 1/4in.D. The rubber - coated dividers keep your tablets organized and protected. Each divider is 1in. apart. Also includes two 16 - Outlet Vertical electrical outlets for maximized space. Plenty of ventilation allows air to circulate freely through the unit. Includes four 4in. casters, two with locking brakes. Easy access rfid card reader lock.