Disclosure: YUZUCusomKeycaps and Keyreative, the companies discussed in this article, have a business relationship with Greenkeys. The author has a personal relationship with Mr. matt3o, the designer of PBS/PFF. This text is composed as news based on public information.
On March 23, 2026, as previously announced, YUZUKeycaps began supporting the new PBS andPFF profiles.
PBS is a profile for normal key switches designed by Matt3o and manufactured by Keyreative, and PFF is a uniform profile for low-pro MX, also designed by Matt3o and manufactured by Keyreative.
PBS is about 7.5 mm and PFF is about 5 mm high.
Reference: https://yuzukeycaps.com/ja/guides/keycap-profiles/
While we are very pleased to see an increase in the number of low-profile mechanical keyboard options, it is troubling that there are still so few of them compared to the normal profile.
There are also many options for low-profile mechanical key switch standards, and depending on the compatibility of the keyswitch and keycap, the possibility of interference with the plate cannot be dismissed.
In this context, we are particularly interested in the PFF profile.
PFF is a profile designed from the ground up for low-profile key switches with cross-stem geometry similar to MX axes, such as Cherry Low Profile, Kailh Choc V2, Gateron Low Profile, and Huano Low Profile. The profile is designed from the ground up for low-profile key switches with cross-stem geometry similar to the MX axis, such as Kailh Choc V2, Gateron Low Profile, and Huano Low Profile.
Height is 5mm.
Low-profile keycaps tend to be “thin but flat,” but PFF seems to be trying to bring a more three-dimensional feel to the keycaps.
Even low-professionals will be very interested in this product for those who want to think properly not only about the appearance but also about the comfort of hitting the ball.
PBS, which is slightly taller than PFF, is also suitable for normal profiles.
It has a top shape that combines curves in the front and rear directions with spherical indentations.
The YUZUKeycaps guide also shows that it is easy to handle even slightly special layouts such as split and ortholinear, and that there is a convex shape option for thumb-pressed keys.
This type is easy to use without worrying about so-called “line-by-line differences,” so it seems to be a good match for people who use their own keyboards or other original layouts.
In addition, YUZUKeycaps has also published a guide to low-pro key caps and a page that makes it easy to compare each profile, which is a very in-depth and helpful guideline.
In honor of this release, we are also offering a coupon code for 10% off on the official discord changelog channel.
If you are interested, please check it out.
- First written on: March 23, 2026
- Last update: March 23, 2026
- Method of coverage: See official release
- Reference and citation: https://yuzukeycaps.com/
- Conflicts of Interest: Product Offering: None Monetization Link in this paper: Yes
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