![[Fully Functional & Cleaned] HHKB Professional JP PD-KB420B](https://u-mercari-images.mercdn.net/photos/m79184797725_1.jpg)
[Fully Functional & Cleaned] HHKB Professional JP PD-KB420B
Product details
| Management number | 48442230 | Release Date | 2026/02/02 | List Price | $73.60 | Model Number | 48442230 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
This is the PFU Happy Hacking Keyboard Professional JP (Sumi).
- Model: PD-KB420B
- Manufacturer: PFU Limited
- Connection Type: Wired (USB)
- Port Type: USB (mini USB Type-B)
- Keyboard Type: Capacitive, non-contact
- Color: Black (Sumi)
- Manufacturing Date: April 2009
Manufactured about 15 years ago, this fully functional keyboard was working without issues until December 2025. Before listing, I wiped the body with消毒用アルコール (disinfecting alcohol) and removed all the keycaps, washing them in a laundry net.
I used to use it in the "Sonshi Style" (raised), and there are two small non-slip pads purchased from a 100-yen shop attached to the back to elevate the keyboard (see photo 4). You can use it as is, or you can remove them.
As a bonus, I'm including a USB Type-A to mini USB Type-B (L-shaped connector) cable.
| Category | Electronics > Computers & Laptops > Computer Accessories |
|---|---|
| Size | N/A |
| Brand | None |
| Condition | Good |
![[Fully Functional & Cleaned] HHKB Professional JP PD-KB420B](https://u-mercari-images.mercdn.net/photos/m79184797725_2.jpg)
![[Fully Functional & Cleaned] HHKB Professional JP PD-KB420B](https://u-mercari-images.mercdn.net/photos/m79184797725_3.jpg)
![[Fully Functional & Cleaned] HHKB Professional JP PD-KB420B](https://u-mercari-images.mercdn.net/photos/m79184797725_4.jpg)
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Computer Accessories
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