This article covers PFU HHKB Professionalシリーズ キートップセット 日本語配列 中央印字 白 PD-KB420KTWC.

Overview

PFU's official HHKB Professional series keycap set, model PD-KB420KTWC, is a replacement kit designed specifically for Japanese layout HHKB keyboards. It includes 69 keycaps in white with center-printed legends, making it an ideal solution for restoring worn or discolored keycaps to like-new condition. The set comes with a keycap puller and a detailed instruction manual, allowing users to perform the replacement themselves without special skills. It is a pure OEM accessory that matches the original keycap profile, color, and texture exactly.

Connectivity & Compatibility

This keycap set is only compatible with Japanese layout models of the HHKB Professional series. Supported models include: HHKB Professional JP HHKB Professional JP Type-S HHKB Professional BT HHKB Professional HYBRID Type-S * HHKB Professional HYBRID The keycaps are designed for electrostatic capacitive switches; they are not compatible with mechanical switch keyboards or English layout HHKB variants. Replacement is purely mechanical — simply pull off the old keycaps and press on the new ones. No soldering or software configuration is required.

Product Info

The PD-KB420KTWC is an official accessory sold by PFU (Fujitsu Group) and available through major retailers like . The typical price is around ¥7,590 (tax included). The package contains 69 keycaps, a keycap puller, and a Japanese instruction manual. This product sits in the entry-to-mid replacement parts tier, offering genuine OEM quality assurance. The keycaps are made of PBT plastic (commonly used in HHKB stock keycaps), known for durability and resistance to shine over time.

Best Use Cases

Long-term HHKB owners: If your keycaps are shiny or legends have faded, this set restores the original look and feel, extending the keyboard's lifespan without buying a whole new unit. Second-hand HHKB buyers: Purchasing a used HHKB often means inheriting worn keycaps. Swapping them out with this official set gives you a like-new typing experience. DIY maintenance enthusiasts: The included puller and manual make the swap straightforward. However, be cautious not to damage the switch stems during removal. Not recommended for: Users with English layout HHKB models, or those who only need to replace a few keys. This is a full-set purchase; individual keys are not sold separately.

Product Disclosure (Amazon)

  • Manufacturer: HHKB
  • Seller: PFUダイレクト
  • Fulfilled by: PFUダイレクト
  • ASIN: B0CNG6ZYKX
  • Note: This article covers a manufacturer-made product based on Amazon listing details.