GB of replacement keycaps for HHKB and REALFORCE now available at Yusha Kobo


On April 21, 2024, Yousha Kobo updated its official X to announce the launch of the new URSA custom keycaps.

GB ends on May 15, 2024. The base kit is priced at 14,080 yen (tax included) and can be combined with various other kits.

Product Lineup

  • Alphas kit (Black/Classic): 8,800 yen (tax included)
  • Mods kit (Black/Classic/Red/Blue): 5,280 yen (tax included)
  • Base kit (Minicom): 14,080 yen (tax included)
  • Extention kit (Black/Classic/Red/Blue/Minicom): 7,040 yen (tax included)
  • Blanks kit (Black/Classic): 10,560 yen (tax included)
  • Artisan PVD (Black/Gold/Silver): 7,370 yen (tax included)
  • Spacebar(6u Black/Classic): 1,100 yen (tax included)

URSA custom keycaps are a set of keycaps that can be used with Topre capacitive non-contact switches by FKcaps.

The target keyboards are compatible with HHKB (not compatible with HHKB Studio), Realforce, Leopold, and other keyboards that use the capacitance non-contact method.

Kawamura top RKawamura

Since the only variation of replacement keycaps (keytops in the PFU sense) compatible with HHKB and other products was only available from Domikey and others, other than the genuine products, it is likely to be very popular. Now if only we could reach HHKB and Realforce users….

URSA custom keycaps have a unique profile, which is slightly taller than the HHKB stock profile and has a “spherical design” where the keys are recessed toward the center, so you can expect a fingertip-attracting keystroke feel.


Product Information


  • Material: PBT
  • Profile: URSA Profile
  • Compatible switches: Topre capacitive switches and compatible products
  • Imprint: Double shot
  • Supported keyboards
  • Base Kit: HHKB and FC660C
  • With expansion kit: RF 87U, RF TKL, RF 84U, RF 86U, RF 104U, FC980C, Topre Type Heaven
  • Manufactured by FKcaps


  • Material: CNC aluminum
  • Coating: PVD

Image and information reference: URSA / Yusha Kobo

Discount Code: ryo10

to save 10% off your purchase.

Discount Code: ryo10

to save 10% off your purchase.

Click here for a list of coupon codes ▷▷▷

Find a keyboard layout you like.

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