Pro Hybrid white

The iconic

Happy Hacking Keyboard Professional

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
Pro Classic White
Pro Classic White Steath
Pro Classic Black Steath

Available In

Choose white steath

Printed Keycaps

Choose black steath

Printed Keycaps

Choose white

Blank Keycaps

Choose black

Blank Keycaps



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
USB Interface USB Type-C
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 *3


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® Catalina 10.15
macOS® Mojave 10.14
macOS® High Sierra 10.13
macOS® Sierra 10.12
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®.

*2 Bluetooth 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.

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

*5 Next 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.

*6 HHKB 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.