HHKB and REALFORCE on Sale at Amazon! Chance to save up to 5,000 yen|Until December 26, 2022 23:59


PFU Corporation is holding a sale at the official Amazon store.

This is an opportunity to obtain eligible products at a significantly lower price than the regular sale price.

The products covered include the HHKB Professional HHKB Professional HYBRID Type-S and keycap set and the new “REALFORCE PFU Limited Edition and optional items set,” following the Amazon Time Sale held in October, with discounts of up to 5,000 yen (including tax). set” and the new “REALFORCE PFU Limited Edition and optional items” at a discount of up to 5,000 yen (including tax).

The sale will last until 23:59 on December 26, 2022, so if you missed the previous Black Friday data sale, this is your chance to take advantage of it.

*This will be updated on the evening of December 16, 2022. Some content is out of date, please visit Amazon for the most up-to-date information.

Kawamura top R

Representative of GreenEchoes Studio

Ryosuke Kawamura

He launched his own media as a site operator and web writer, and now plans and manages multiple corporate media. He often types heavily in his work, and in his search for greater efficiency, he became addicted to the keyboard swamp and established “GreenKeys”.


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.

This site is operated on a performance-based compensation advertising basis, and we may receive revenue from product purchases made through this site. Please be aware that some of the keyboards on this site are presented as advertisements (PR). This alert information conforms to the provisions of Article 5, Item 3 of the Revised Act Against Unjustifiable Premiums and Misleading Representations, which came into effect on October 1, 2023.

Sale Items

Discounted products

Happy Hacking Keyboard Professional HYBRID Type-S

→Discount 2,000 yen discount (tax included)

Happy Hacking Keyboard Professional HYBRID

→Discount 2,000 yen discount (tax included)

REALFORCE R2 “PFU Limited Edition” set products

→. 15% off

REALFORCE for Mac “PFU Limited Edition” set products

→. 15% off

Click here for a set of REALFORCE

REALFORCE R2「PFU Limited Edition」のセット商品を見る

US Array / Full Size

Japanese language layout / ten-keyless

US layout / ten-keyless

US Array / Full size for Mac only

Japanese-language layout for Mac only / numeric keypad-less

US layout / numeric keyless keypad for Mac only

How to choose HHKB

HHKB Non Type S 10

HHKB Professional Hybrid is a compact keyboard that supports wired and wireless (Mac/Windows compatible).

Featured in this sale are the non-silent model and The discounts have been expanded from the August sale to include both the Type-S, which is a quiet model. The sale does not apply to the

The discount is a flat rate of “2,000 yen (tax included) The discount is a flat rate of “2,000 yen (including tax)”, making it very affordable.

Happy Hacking Keyboard Professional HYBRID

model numberarray (programming, programing)loadkeyboard size
English Array ModelEnglish (US)Equal load (45g)60% Style
English sequence unmarkedEnglish (US)Equal load (45g)60% Style
Japanese-style arrayJapanese (JIS)Equal load (45g)65% Style

The pressing pressure, which is important in selecting a mechanical keyboard, is “45g” and Features a slightly lighter pressing feel than standard mechanical keyboards It is

The push-in depth (stroke width) is set to the standard “4mm (non-silent model)” and “3.8mm (silent model )”.

If you are looking for a firm press, the non-silent model is better than the silent model (stroke width: 3.8 mm).

HHKB capacitance non-contact switch

Hybrid Type-SHybrid
pressing pressure45g45g
Movement to operationprivateprivate
soundextremely quietgentle

HHKB|Keystroke sound samples

HHKB Profesional Hybrid Type-S |Quiet axis
HHKB Profesional Hybrid |Normal Axis

However, nonquiet models are It is not suitable for use in quiet offices.

After all, non-silent models It’s just a lot of clinking.” is “noisy”.

If you are going to purchase, “Type-S” would be the only choice.

Please also check out our sound comparison video!

How to choose REALFORCE

R2 8

REALFORCE R2 is a keyboard that supports only wired connections.

Like HHKB, it uses the “capacitance non-contact ” input method, which is a mechanism that physically prevents “chattering” from occurring.

This time All models are bearing the “PFU Limited Edition” and have the same pressing pressure of “45g” as the HHKB. The pressure is the same as that of the HHKB.

The regular REALFORCE has a “30g” key feel, which is even lighter than the HHKB, but this time, as a collaborative product with PFU, it has the same typing feel as the HHKB.

If you want independent directional keys, don’t want to carry it around, and want a numeric keypad, this is a better choice than the HHKB above.

It is important to note that the keyboard cannot be used in conjunction with a Mac/Windows keyboard.

While HHKB can be used together regardless of the OS, REALFORCE cannot be used together basically because the key printing and layout differ depending on the model.

REALFORCE R2 “PFU Limited Edition

model numberarray (programming, programing)Silent, APCloadkeyboard size
PFU Limited Edition
Japanese (JIS)Equal load (45g)tenkeyless
PFU Limited Edition
English (US)Equal load (45g)tenkeyless
PFU Limited Edition
English (US)Equal load (45g)full size (computer, e.g.)

REALFORCE for Mac “PFU Limited Edition

model numberarray (programming, programing)Silent, APCloadkeyboard size
PFU Limited Edition
Japanese (JIS)Equal load (45g)tenkeyless
PFU Limited Edition
English (US)Equal load (45g)tenkeyless
PFU Limited Edition
Japanese (JIS)Equal load (45g)full size (computer, e.g.)

The latest model, R3, offers wireless connectivity via Bluetooth.

REALFORCE capacitive non-contact switch

pressing pressure45g (only 45g for R3HG/HH/HE/HF)
variable load
variable load
Movement to operationEquipped with APC function
Models with APC function
soundCalm (non-silent model)
Extremely quiet (silent model)
*R3Mac is a quiet model only.
Calm (non-silent model)
Extremely quiet (silent model)

REALFORCE|Keystroke Sound Samples

REALFORCE R3 Silent |Quiet axis
REALFORCE R2 |Normal axis

All models in this sale are quiet models, so office use will not be a problem.

REALFORCE is very quiet, even in non-quiet models.

The video below is a comparison with R2/R3, but please use it as a reference.

We are looking for keyboard-related information! If you have any information on new products or content you would like us to publish, please use the inquiry form.


Many companies have contacted us.
We encourage you to use our website for sales promotion!



河村 亮介のアバター 河村 亮介 GreenKeys運営責任者/事業代表

本職はスマートフォンの乗り換え案内と通信費用節約の専門家です。Mac専用キーボード収集癖の集大成がこのサイト。やはり仕事のツールとして高品質なキーボードは欠かせません。WEBサイト運営事業GreenEchoes Studio代表。