Copernicus Tech Tub2 Modular Cart for Large Adapters - For 32 devicesLightweight Modular Carts move effortlessly over thresholds making it easy to share sets of devices throughout a school. This Modular Cart can charge and store up to 36 iPads (depending on case size). With a tub to tub locking mechanism, the tubs lock together securing all the devices in the cart. For use within a classroom or placed in a central location where individual tubs can be signed out. They are ideal for schools that share devices, or for 1: