Up for sale is a rare, highly collectible vintage mechanical keyboard manufactured by Fujitsu for the 1983 Sanyo MBC-550 and MBC-555 personal computer systems.The original external model sticker is no longer present, but the internal PCB is cleanly stamped with part number N86D-2531-R001.For Keyboard Enthusiasts & Collectors:This legendary board features Fujitsu 3rd-Generation Leaf Spring mechanical switches, highly regarded in the vintage community for their unique, ultra-smooth tactile typing experience. It comes equipped with its original, incredibly thick, cylindrical double-shot ABS keycaps. The keycaps feature crisp lettering and include the iconic vibrant red "BREAK" key.Condition:Cosmetic: In good vintage condition with light wear consistent with age. No major cracks in the housing. The keycap legends are sharp and clear.Mechanical: The keys press smoothly and register a satisfying tactile response.Cable: Includes the original integrated coiled cable terminating in a vintage DIN connector.Testing: Sold AS-IS / Untested due to not having the original Sanyo MBC-550 system base unit to plug it into. Perfect candidate for a vintage restoration, a USB microcontroller conversion project, or as a rare replacement piece for an existing Sanyo setup.Please review the photos carefully to evaluate the exact cosmetic condition. Shipping will be packed securely to ensure this historic piece arrives safely.Item Specifications: Format: Computer Keyboard, Manufacturer: HANDAMEN, Part Number: N86D-2531-R001, Interface: 5-pin DIN, Features: Numeric Keypad, Function Keys.