The Smartbox (SB-CST32T) is a new innovative solution designed to cater to the next evolution of classroom technology. It is designed to securely store SYNC & CHARGE up to 32 tablet devices at once. This cost effective solution is perfect for the current generation of classroom devices with its easy to use slide out shelves and effortless cable management. Intelligent Charging System: The trolley features 32 individual USB Ports for charging each device. LED indicators at top of the trolley corresponding to each USB Port show the current charging status (RED=Charging GREEN: Fully Charged AMBER: Sync In Progress)Smart Safe & Easy to Use: The trolley is safe for both users and devices with built in Over Current & Over Voltage protection. The innovative slide out shelves make it easy and safe to access the device while storing and retrieving. Each shelf has numbered slots for better device organisation and built in clips for cable management to avoid cable tangles and easy to use setup. It features three extra external power outlets to power peripherals. Mobile Secure & Durable: Securely store SYNC & CHARGE up to 32 tablet devices (up to 13″ size) simultaneously though individual USB Ports dedicated to each device. The three point lock with slot in sliding double door is safe and easy to use with its space saving & convenient to use design. The trolley is constructed with a combination of plastic and steel for durability and strength. The trolley is fitted with heavy duty 5″ medical grade LOCKABLE castor wheels for fast and effortless mobility over all types of surfaces.