Thank you for viewing. Instant purchase is welcome. HHKB Professional JP White PD-KB420W [Product] HHKB Professional JP PD-KB420W [Product Details] Uses electrostatic capacitive non-contact switches for ideal key touch and high durability. The internal key structure has been newly designed to improve typing stability and lightness, and to enhance high-speed typing characteristics. The balance of key pressure and key stroke has been optimized, and the key stroke has been adjusted to 3.8mm. Pursuing quietness, the key impact sound has been reduced by 30% compared to the conventional model. [Accessories] ・Main unit ・Connection cable [Condition] There is some yellowing on the main unit, but it is still a usable item. Please judge the condition from the photos. Operation has been confirmed without any problems. I am in a smoke-free and pet-free environment. Thank you.