Datamation Systems GatherRound carts are the most compact, user-friendly and affordable cart systems you can find. If you want a cart that syncs and charges, the will handle up to 32 tablets or iPads and a MacBook or other notebook host. The DS-GR-T-M32-SC will simultaneously sync 32 tablets to appropriate software (such as iPads through iTunes using a Mac). The durable sync and charge system is powered by state-of-the-art universal USB hubs from Cambrionix, global leader in mobile USB solutions; universal and future-proof with user-upgradeable firmware and meets all applicable specifications.