S40i’s ingenious self-monitoring charging system and spacious design is perfect for charging all your Chromebooks, laptops, and tablets. It’s reliable, durable, and safe. This cart’s two easy-access sliding shelves hold up to 40 laptops, Chromebooks, netbooks, iPads, and Android/Windows tablets (devices up to 14” screens). Easy cable management provides individual AC adapter compartments and cable clips to prevent any cable mess. Device slots are also individually numbered to keep cable routing and devices organized. Features intelligent charging system that monitors all 40 devices in groups of 10 and determines the best charging sequence: all device groups at once, or each group individually. No programming required – it’s automatic, safe, and efficient. The three-point steel locking mechanisms built into its cabinet doors provides a safe haven for your devices when they are being charged or stored. The charging cart’s large capacity, steel construction, and smooth-rolling, 5” medical-grade locking swivel castors provide a rugged, yet easily maneuverable storage cart that can double as a teaching platform.