The Adesso AKB-600HB is no ordinary keypad. It got the best of both worlds in terms of convenience and utility. The built in 3 port USB hub provides you with easy access for your input devices like flash drives or mice. It is the perfect edition for your laptops because the combination of the keypad and the laptop keyboard accomplishes the need of a full size keyboard. The mechanical key switch design further improves the keypad™s durability and reliability because the keys will last up to 50 million keystrokes. Along with its portability, the Adesso AKB-600HB is one of the best keypads for years to come.