This article covers PFU HHKB Professionalシリーズ キートップセット 英語配列 中央印字 蒲公英 PD-KB400KTLYC.

Overview

PFU's HHKB Professional Series Keycap Set English Layout Center Print Dandelion PD-KB400KTLYC is the third installment in the 'Color Keycap Project,' designed specifically for Happy Hacking Keyboard Professional series users. The theme is dandelion: warm yellow center-printed keycaps that evoke spring sunlight. The set includes all 60 keycaps needed for a full English-layout HHKB Professional keyboard, plus a keycap puller and instruction manual. What makes this set special is the ability to personalize your typing experience visually. You can replace every key for a bold yellow look, or mix and match with the separately sold white (Snow) and black (Ink) center-print sets to create a unique gradient or accent layout. It's an easy, low-commitment way to refresh a keyboard you use day in and day out.

Connectivity & Compatibility

This keycap set is exclusively for English-layout HHKB Professional series keyboards. Compatible models include: HHKB Professional JP HHKB Professional JP Type-S HHKB Professional BT HHKB Professional HYBRID Type-S * HHKB Professional HYBRID It is not compatible with HHKB Studio series or any Japanese-layout (JIS) models. Before purchasing, double-check your keyboard's layout. The included instruction manual walks you through the replacement process step by step.

Product Info

The PFU HHKB Keycap Set (PD-KB400KTLYC) was released in early 2025 with a retail price around ¥8,250. It is available directly from PFU's official store and major online retailers. No separate warranty information is listed, but PFU typically offers standard consumer support for defects. Market positioning: This is a niche, first-party accessory for a specific keyboard family. Unlike generic keycap sets, it guarantees perfect fit and print alignment, and the color is factory-matched to PFU's design language. It sits in the mid-to-premium accessory tier for HHKB enthusiasts.

Best Use Cases

HHKB Professional owners wanting a fresh look If your HHKB has been the same monochrome for years, this set instantly transforms its appearance. Great for adding a personal touch to a desk setup or matching a room's color scheme. First-time keycap swappers The included puller and clear instructions make this a beginner-friendly project. You don't need to buy tools separately. The process takes about 15–30 minutes for a full swap. Not for HHKB Studio users If you own an HHKB Studio, this set won't fit. Studio owners should look for other custom keycap options instead.

Things to Consider

Check your keyboard model and layout carefully before buying. This set only works with English-layout HHKB Professional series — not Japanese layout, and not HHKB Studio. When swapping keycaps, work gently to avoid scratching the stems. PFU does not sell individual keys from this set, so if you want to mix colors, you'll need to buy the white or black sets separately. This product changes only aesthetics, not feel. If you want different key travel or sound, you'll need to look into switch modifications or o-rings instead.

Product Disclosure (Amazon)

  • Manufacturer: HHKB
  • Seller: PFUダイレクト
  • Fulfilled by: PFUダイレクト
  • ASIN: B0DV58CP6J
  • Note: This article covers a manufacturer-made product based on Amazon listing details.