Additional Details ------------------------------ Bullet point: Mechanical Blue Switches - The mechanical key switch technology is a top design when it comes to keyboards and keypads alike. The tiny snap you feel through your fingertips and the subtle click you hear confirms each keystroke. With its 45-50g of actuation force, along with the instant tactile and audible response in your typing, it makes doing work much more efficient. Product description: 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 easy access to input devices like flash drives or mice. It is the perfect edition for your laptops because combining the keypad and the laptop keyboard accomplishes the need for 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.