usb tablet charging cart with 54 slots

{"cid":"91203148","title":"Movable Smart Type USB Tablet Charging Cart With 54 Slots","imgUrl":"https:\/\/img.ismap.com\/nimg\/a8\/88\/e1ec2352010d151a7042aef0150e-200x200-1.jpg","attrs":{"Price":"USD550-700\/set","Brand Name":"Anheli","Model Number":"AHL-E54","Minimum Order Quantity":"1 set","Delivery Time":"3-5 days for sample","Certification":"CE, FCC, RoHS, CCC","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"1000 sets\/month","Packaging Details":"Standard exporting plywood cases for sample","Item":"USB tablet charging cart","Material":"Galvanized sheet","Charging type":"USB","Charging ports":"54","Security system":"8S security protection system","Cooling system":"Cooling fans and ventilation holes","Safety system":"Locks and keys","Dividers":"ABS engineering plastic"}}