Designed to securely store and charge notebook pcs from minis up to a 156 screen size inside the classroom these innovative carts have a large compartment with up to 30 individual smooth edged shelves for easy quick and safe loading and unloading by teachers and students and a separate locked it compartment to store notebook power adapters charging and managed charging carts and ethernet connectors managed charging carts the hp 30 notebook managed charging cart stores and charges 30