The keyboards of the AK-4400-T series have been specifically designed for use in industrial environments, with servers, and in kiosk applications. The large-sized trackball allows even inexperienced users to easily and accurately control the mouse pointer. The newly developed scissor technology guides the key buttons at the four outer points, resulting in a unique tactile experience, even when pressed at the outer edge. This improved key guidance enabled the realization of a soft pressure point characteristic that is not achievable with conventional technologies at this height (23 mm).