This article covers PFU HHKB Professionalシリーズ キートップセット 日本語配列 無刻印 白 PD-KB420KTWN.

Overview

The PFU HHKB Professional Series Keycap Set Japanese Layout Blank White PD-KB420KTWN is a replacement keycap set designed exclusively for Japanese layout models of the HHKB Professional series. Compatible with HHKB Professional JP, Professional JP Type-S, Professional BT, Professional HYBRID Type-S, and Professional HYBRID, this kit allows you to replace worn, yellowed, or damaged keycaps easily. The keycaps are blank (no legends), giving a clean, minimal appearance that is ideal for users who have remapped their keyboard layout or prefer a distraction-free typing experience. The set includes 69 keycaps, a keycap puller, and an instruction manual.

Connectivity & Compatibility

This keycap set is only compatible with HHKB Professional series models that have a Japanese (JP) layout. It will not fit US/English layout models. Compatible models include HHKB Professional JP, HHKB Professional JP Type-S, HHKB Professional BT, HHKB Professional HYBRID Type-S, and HHKB Professional HYBRID. Replacement should be performed carefully according to the included manual; the keycap puller makes removal easy without special tools.

Product Info

This set is an official PFU accessory, offering the same quality as the factory-installed keycaps. It allows HHKB users to refresh the appearance of their keyboard without purchasing a new unit. Positioned as a mid-range replacement accessory, it provides excellent value for long-term HHKB owners. Released around 2022, the product remains widely available. Warranty terms follow PFU's standard product warranty policy.

Best Use Cases

  • Ideal for HHKB Professional JP users who have experienced keycap wear, yellowing, or damage over extended use. Replacement restores both aesthetics and tactile feel. - Perfect for users who have customized their keymap and find the original legends confusing. Blank keycaps eliminate visual distractions and reinforce touch-typing. - Great for enthusiasts seeking a clean, minimalist desktop look. The all-white blank keycaps give the HHKB a sleek, professional appearance.

Product Disclosure (Amazon)

  • Manufacturer: HHKB
  • Seller: PFUダイレクト
  • Fulfilled by: PFUダイレクト
  • ASIN: B09Y1HTBR3
  • Note: This article covers a manufacturer-made product based on Amazon listing details.