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 蒲公英 PD-KB420KTLYN.

Overview

The PFU HHKB Professional Series Keycap Set Japanese Layout Blank Dandelion (PD-KB420KTLYN) is a replacement keycap set specifically designed for HHKB Professional series keyboards. This third installment of the "Color Keycap Project" brings a warm, cheerful dandelion-yellow color to your typing experience. The set includes 69 blank keycaps, a keycap puller, and an instruction manual, making for a straightforward upgrade. These keycaps are blank — no legends printed on them — which appeals to purists and touch-typists who prefer a clean, minimal aesthetic. The dandelion shade is bright yet soft, reminiscent of spring sunshine. You can mix and match with other Color Keycap Project sets (white or ink-black with center legends) to create your own unique layout.

Connectivity & Compatibility

This keycap set is compatible only with Japanese-layout models of the HHKB Professional series. Supported keyboards: HHKB Professional JP HHKB Professional JP Type-S HHKB Professional BT HHKB Professional HYBRID Type-S * HHKB Professional HYBRID It does NOT fit the HHKB Studio series. Installation is straightforward, but PFU advises care to avoid scratching the keycaps during replacement. The set is sold as a complete 69-key package; individual keys are not available separately. Always refer to the included manual for the correct key placement diagram.

Product Info

Released in late 2024, the PD-KB420KTLYN is priced around ¥9,240 (tax included). It is available from PFU's official store and major retailers like . Warranty coverage follows standard consumable parts policy — defects upon arrival are covered. Contents: 69 keycaps, a keycap puller, and an instruction manual. Market positioning sits in the mid-to-high tier as an official HHKB customization part. Unlike third-party alternatives, this PFU-original set guarantees perfect fitment, consistent color reproduction, and the same feel as the original keycaps. The blank design targets users who value a clutter-free keyboard and are comfortable with touch-typing.

Best Use Cases

Ideal for HHKB Professional series owners who want to personalize their keyboard's look without sacrificing build quality. Because the keycaps are blank, this set is best suited for touch-typists who don't rely on key legends — whether you're a programmer, writer, or longtime HHKB enthusiast. It also makes a great gift for a fellow HHKB user who appreciates fine mechanical keyboards. The cheerful dandelion color can brighten up a home office desk, and the ability to combine with other sets in the Color Keycap Project opens up endless creative possibilities.

Product Disclosure (Amazon)

  • Manufacturer: HHKB
  • Seller: PFUダイレクト
  • Fulfilled by: PFUダイレクト
  • ASIN: B0DV5CYPBW
  • Note: This article covers a manufacturer-made product based on Amazon listing details.