Pro Hybrid white

Happy Hacking Keyboard Professional Classic

The iconic

HHKB Classic

The original wired HHKB design, updated and carefully refined for a classic HHKB experience

  • Topre key switches

    Comprising a conical spring, rubber dome and an electrostatic capacitive sensor, Topre key switches eliminate key chatter, whilst providing supreme tactility, extra comfort, keystroke precision and of course, the famous Topre ‘Thock’ sound.

  • Minimalist, Tenkeyless, Near-Symmetrical Layout

    The compact size and near-symmetrical layout means your fingers never have to leave the home row making for greater speed, accuracy and reduced wrist and finger fatigue.

  • Premium PBT Keycaps and Spacebar

    Sculpted keycaps and spacebar made from durable, shine-resistant PBT with dye-sublimation printed legends for long-life and a crisp, professional finish.

  • Cylindrical Step Sculpted Design

    The cylindrical-step sculpted design provides greater ergonomics, with all keycap surfaces facing centrally, feels more natural and helps you keep your fingers on the home row.

  • Dip-Switch Customisation

    Dip-Switches enable you to change keyboard mode to support different Operating Systems and assign different functions to keys.

  • UNIX Arrangement

    We adopted the key arrangement following the Sun Type 3 key array. The [Control] key is to the left of [A] for greater usability and maximum productivity.

  • Designed and Made In Japan

    Commitment to quality, durability, and technological sophistication.

HHKB Classic

The original wired HHKB design, updated and carefully refined for a classic HHKB experience


Model HHKB Professional Classic (White/Printed Keycaps)
HHKB Professional Classic (Charcoal/Printed Keycaps)
HHKB Professional Classic (White/Blank Keycaps)
HHKB Professional Classic (Charcoal/Blank Keycaps)
Model Number PD-KB401W
Chassis Format Ultra-Compact Tenkeyless keyboard
Layout Near-Symmetrical 60-Key Modified US ANSI Layout
Chassis Colour White (PD-KB401W / PD-KB401WN)
Charcoal (PD-KB401B / PD-KB401BN)
Keycap Colour White / Cool Grey (PD-KB401W / PD-KB401WN)
Charcoal (PD-KB401B / PD-KB401BN)
Keycap Legend Colour Black (PD-KB401W)
Black (PD-KB401B)
Keycap Legends Long-Life Dye-Sublimation Printed (PD-KB401W / PD-KB401B)
No Keycap Legends (PD-KB401WN / PD-KB401BN)
Keycap & Spacebar Material Polybutylene Terephthalate (PBT)
Key Weight 45 g
Key Travel 4 mm
Key Pitch 19.05 mm
Key Switches Topre Electrostatic Capacitive Silent Key Switches
Key Switch Structure Rubber Dome, Conical Spring, Silent Membrane
Key Switch Lifetime 50 million keystrokes
Chassis & Key Ergonomics Cylindrical Step Sculpted design
Adjustable Keyboard Height 3 Positions
USB Interface USB Type-C
USB Cable 1.8 m (Detachable) with Type-C Connector
Keyboard Dimensions (W x D x H) 294 mm x 110 mm x 40 mm
Operating Time Approx 3 months*3
Dipswitch Customisation Keyboard Mode Selection:
Lite Ext Mode
Mac Mode
Key Assignment & Wake Up Host Function:
Delete Key assignment
Meta Key assignment (Windows Key / Command Key)
Alt Key assignment
Wake up host PC
Keyboard Weight 530 g
Operating Temperature Range 5°C – 35°C (41°F – 95°F)
Operating Humidity Range 20% – 80% (non-condensing)
Country of Origin Made in Japan
Designed in Japan
Commitment to quality, durability, and technological sophistication
Manufacturer Warranty 2 Year PFU Warranty *1
Advance Exchange Next Business Day *2
Includes replacement of product and two-way shipping costs

System Requirements


Windows® 10 (32-bit / 64-bit)
Windows® 8.1 (32-bit / 64-bit)
Windows® 7 (32-bit / 64-bit)
Windows® Server 2016
Windows® Server 2012
Windows® Server 2008


macOS® 10.15 Catalina
macOS® 10.14 Mojave
macOS® 10.13 High Sierra
macOS® 10.12 Sierra
iOS® 11.4 or higher
iPadOS® 13.0 or higher


Android™ 4.4 KitKat or higher



*1 Keymap customisation software requires a USB connection to a PC running Windows® or macOS®.

*2Bluetooth connection requires Windows® 10 or Windows® 8.1, macOS® Catalina 10.15 or macOS® Mojave 10.14, iPadOS® 13.0 or higher, iOS® 11.4 or higher, Android™ 4.4 KitKat or higher.

*3 When using Alkaline batteries, different battery types may provide different results.

*4Valid for 2 years from the original purchase date of the product from the PFU EMEA Store.

*5Next Business Day available in some countries, geographic limitations may apply. Where Next Business Day is not available, exchanges typically take place within 1-2 days.

*6HHKB HYBRID Type-S may work with other Operating Systems including many Linux distributions, although PFU cannot guarantee the keyboard is operable with any Operating Systems except those listed above.


All Specifications are correct at time of publishing but may be subject to future revision due to changes in support policy by PFU and Topre.