What Exactly Are ACA Profile Keycaps? A Beginner’s Guide + Akko & MonsGeek Timeline Keycap Release
Nov. 29. 2025
For mechanical keyboard enthusiasts, the Keycap Profile (height and shape) is a critical element that defines both the typing feel and the visual aesthetic. Beyond the familiar Cherry Profile and OEM Profile, the market is constantly introducing innovative designs.
This guide introduces a new keycap profile, the ACA Profile, explaining its specifications, its connection to the classic Cherry Profile, and its use in the MonsGeek × Akko Timeline keycap set.
Starting with the Familiar: Cherry Profile
Cherry Profile is a classic and widely recognized keycap shape:
- Medium height (~9mm)
- Sculpted rows (each row has a different angle)
- Comfortable for long typing sessions
- Balanced sound profile
It’s the go-to choice for many mechanical keyboard users because it offers a natural feel and easy adaptation.
So What Exactly Is ACA Profile?
ACA Profile is a new keycap height/shape introduced by Akko. Its name is an acronym that reveals its design philosophy:
ACA = Akko, Cherry, All Sculpted Rows
- Medium-High height (similar to Cherry)
- Fully sculpted across all rows
- Ergonomically designed for typing or gaming
- Compatible with MX-style switches
ACA Profile offers a comfortable typing feel that’s easy to adapt to, while giving your keyboard a unique typing experience.
ACA Profile vs. Cherry Profile: Key Differences
| Feature | Cherry Profile | ACA Profile |
|---|---|---|
| Height | Lower standard, widely adopted | Generally slightly taller than Cherry Profile |
| Sculpting | Sculpted (R1-R4) to fit the fingers | Sculpted (R1-R4) to fit the fingers |
| Typing feel | Classic, comfortable, widely preferred | Inherits Cherry's comfort but might feel slightly more substantial or "taller" |
| Sound | High compatibility, low-height comfort, excellent for interference prevention. | Combines the Cherry sculpted feel with Akko's innovation to offer a unique and ergonomically-friendly typing angle. |
In short, ACA Profile keeps the familiar typing comfort of Cherry while improving ergonomics and aesthetics.
Learn More about ACA Profile Timeline Keycap Set
This custom keycap set includes a base set with multiple keycap sizes and extra novelty keycaps, featuring shift keys in 1.75u, 2u, 2.25u, and 2.75u, and spacebars in 6.25u and 7u, providing versatile layout compatibility.
Feature
- PBT Dye-Sub : Durable, fade-resistant, and smooth to the touch.
- Friendly to Mac Users: includes Command and Option keys.
Compatibility
- Switch Compatibility: Like most custom keycap sets, the keycaps use the MX-style cross-stem structure, making them compatible with standard mechanical switches and magnetic switches, including Akko, MonsGeek, Cherry, and other MX-style switches.
- Layout Compatibility: This keycap sets often include 151 keys with various keycap sizes to ensure they can cover various layouts: 60%, 64-key, 65%, TKL, 75%, 96%, 1800 compact, and full-size keyboards. Please note that low-profile switches are not supported.
Timeline Keycaps Demo – Look & Customization
Further Reading
Want to explore more about keyboard keycaps? Check out these guides:
Learn how different switches affect typing noise and how to choose a keyboard that fits your environment.
A quick guide to keycap profiles (OEM, Cherry, SA, etc.) and how they affect comfort and typing feel.
Learn what shine-through keycaps are and how they work with rgb keyboards to improve visibility and enhance your typing experience.