White Rabbit Japan

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Happy Hacking Keyboard Professional 2


The Happy Hacking Keyboard Professional 2 (¥17,816Prices are approximate only and subject to change.
White Rabbit Express service fee and other costs not included.
) is a favorite keyboard among coders and UNIX system administrators because of its size and the superior engineering of the keystroke (45g of pressure, 4mm stroke) described as having a crisp touch, smooth fit and gentle change in load . The small size reduces wrist movement, improving typing efficiency and reducing fatigue, and also making it very portable for those who travel frequently.


By detecting a change in capacitance value due to depression of the conical spring, they keyboard registers the keystroke without contact with the electrode, further reducing fatigue. Even the sound emitted when typing is designed to be environmentally friendly (2,500 – 5,000 Hz).

The keyboard layout can be switched between Mac and PC modes

Color: Available in white and black both with and without lettering (PD-KB400W/PD-KB400B; no lettering: PD-KB400WN/PD-KB400BN)
Interface: PC with USB port, Mac with USB port
Connecting cable: 1.8m detachable
Key Specification: 45g (pressing pressure) 4mm stroke (depression) capacitive non-contact method. 19.05mm key pitch.
Number of keys: 60 US array keys
Function: customization capabilities, USB (2.0/1.1) HUB x 2 port (power capacity: up to 100mA each port)
Size (mm) 294 (W) x 110 (D) x 40 to the upper surface (H) key top
Weight: (excluding cable) 530g









We can also supply other PFU keyboards and accessories including:
HHKB Professional Type-S
HHKB Professional JP
HHKB Lite2
HHKB Lite2 for Mac

  • Buy from our online shop. Direct from Japan!

Contributed by Max

Max is the founder and director of White Rabbit Japan. When away from the office he enjoys hiking in the mountains around Tokyo and has developed an interest in freediving. His talkative Siamese cat Wabi boosts morale around the office.

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