Our 30-Unit Laptop Carts store and charge up to thirty laptop computers. Our Intelligent Laptop Carts use microchip technology called the Brain to decrease heat in the cart and proportionally distribute charge to the laptops, saving energy and extending battery life. Lockable Cable Clutter Closet in the rear of the cart provides storage and identification for up to 30 wire/cable sets and transformers. Cart has been certified to conform with UL 60950 standards for Safety of Informational Technology.