Darmoshark K3 Pro Numeric Keypad is a 19-key Numpad mechanical keyboard that you pair with your keyboard whenever the need for a numeric keypad arises. The 19-key structure is optimized and designed for easy pairing and easy implementation with any keyboard layout. It helps you improve your efficiency in work and entertainment with a detached numeric keypad design. The K3 Pro supports three-mode connections including Wireless and Wired options!!