"The 'TabCabby 16 Horizontal Compact' charges 16 Tablets up to 12" screen size including their protective cases. The horizontal storage shelves store two devices side by side within a compact footprint. The TabCabby offers fast, flexible and simultaneous charging with a programmable timer. Maximum security & safety is guarenteed with dual point locking system and separate lockable power compartment. It's easy to move with ergonomic top handles, rounded corner bumpers and multi-directional non-marking wheels. The TabCabby offers silent charging with unique ventilation system and a built-in heat sensor shuts off power automatically if over-heating occurs."