This article covers PFU HHKB Professionalシリーズ キートップセット 英語配列 無刻印 白 PD-KB400KTWN.

Overview

The PFU HHKB Professional Series Key Top Set (model PD-KB400KTWN) is a genuine replacement keycap set designed specifically for English-layout HHKB keyboards. This blank white version features no printed letters or symbols, offering the ultimate minimalist aesthetic for HHKB enthusiasts. Compatible with a wide range of HHKB Professional models including Professional, Professional2, Type-S, BT, HYBRID, HYBRID Type-S, and Classic, it's the perfect solution for refreshing worn or yellowed keycaps. Each keycap is identical to the factory-installed ones, so you get the same tactile feel and build quality. The package includes a keycap puller and an instruction manual, making the swap straightforward even for first-time users.

Connectivity & Compatibility

This keycap set is exclusively for English-layout HHKB Professional series keyboards. It is not compatible with Japanese-layout models or keyboards from other manufacturers. Supported models include: HHKB Professional HHKB Professional2 HHKB Professional2 Type-S HHKB Professional BT HHKB Professional HYBRID HHKB Professional HYBRID Type-S * HHKB Professional Classic The set contains 60 keycaps covering the full English layout. Individual key sales are not available, so you must purchase the entire set.

Product Info

Manufactured by PFU, this keycap set is widely available through and other retailers. Priced around ¥6,000, it offers good value as an official replacement part. Its market position is clearly as a first-party accessory for HHKB users, supporting everything from entry-level to high-end models. Included in the box: 60 keycaps, a keycap puller, and an instruction manual with replacement steps and key layout chart. Warranty details should be confirmed on the official PFU website.

Best Use Cases

HHKB owners whose keycaps have become shiny or yellowed after years of use. This set restores the original look and feel without changing the typing experience. Users who have customized their key mapping with HHKB's keymap change tool. Blank keycaps eliminate visual confusion, allowing you to type based on muscle memory alone. * Minimalist desk setups where a clean, unmarked keyboard surface enhances the overall aesthetic. The blank white keycaps give a professional, understated appearance.

Product Disclosure (Amazon)

  • Manufacturer: HHKB
  • Seller: PFUダイレクト
  • Fulfilled by: PFUダイレクト
  • ASIN: B00FQ5FZNQ
  • Note: This article covers a manufacturer-made product based on Amazon listing details.