MBK 40s
Best low-profile keycaps for 40% mechanical keyboard enthusiasts.
Elevate your 40% keyboard experience with the MBK 40s keycap set, a specialized, low-profile design from the renowned MBK Legend line. Crafted from heavy PBT plastic, these keycaps offer a comfortable, tactile texture perfect for extended typing sessions, especially when paired with Kailh Choc switches. The set includes all necessary legended caps for popular 40% layouts like Corne and Kyria, and is also compatible with smaller boards such as the Microdox or Ferris. Legends are applied using durable PBT Dyesub technology, ensuring clarity and longevity.
$48.00
Owner Satisfaction
4.5
/ 5
Category Rank
3131
/ 6541
#3131 in Keyboard Keys & Caps
Price vs Category Average
+12%
Above average
Material
PBT Plastic
/ PBT Plastic
Who it's for
- Keyboard enthusiasts prioritizing premium materials and unique aesthetics
- Minimalists and travelers needing a compact, portable workspace
- Typists seeking faster speeds and reduced wrist fatigue
Who should skip it
- Budget-conscious buyers seeking value based on key count
- Users unwilling to master complex key layers and shortcuts
- Customizers preferring the vast selection of standard MX components
Performance breakdown
Ergonomic Profile
Low-profile design significantly reduces wrist strain during long typing sessions.
Material Durability
Heavy PBT construction resists shine and wear over years of use.
Legend Clarity
Dye-sublimation process ensures crisp, permanent characters that will not fade.
Layout Compatibility
Comprehensive kit perfectly covers popular 40% boards like Corne and Kyria.
Tactile Texture
Matte finish provides a satisfying, grippy feel under the fingertips.
Switch Synergy
Optimized specifically for the unique geometry of Kailh Choc switches.
Key Specs
Material
PBT Plastic
Keycap Profile
Low profile
Switch Compatibility
Low Profile (Kailh Choc switches)
Printing Method
Dye-sublimation
Number of Keys
64
Includes
56 × 1U Keycaps
Includes
6 × 1U Homing Keycaps (F, J, H, U, N, T)
Includes
2 × 1.5U Convex Spacebar Key
Features
- Low profile for ergonomic comfort
- Durable PBT dyesub legends
- Comfortable, tactile texture
- Designed specifically for 40% keyboards
- Includes essential homing keys
- Heavy PBT plastic construction
- Available in two colorways
What customers say
The MBK 40s kit earns high praise primarily for its exceptional build quality and thoughtful engineering, maximizing utility in a compact design. Users frequently highlight the low profile Choc switches and keycaps, noting a satisfyingly crisp and ergonomic typing experience. Boardsource is commended for clear documentation and reliable support, essential for this niche product. While the premium price prompts some value discussion, dedicated enthusiasts consider this a top-tier, highly refined keyboard. The main drawback remains the steep learning curve inherent to the 40 percent layout, making it best suited for experienced users seeking a high performance, minimalist solution.
Know before you buy
No, the MBK 40s are designed exclusively for low-profile Kailh Choc switches. They will not fit standard MX-style stems.
The set is optimized for 40% keyboards, including popular models like the Corne, Kyria, Microdox, and Ferris. It includes 64 keys total to cover these compact layouts.
The set includes 6 homing keys (F, J, H, U, N, and T) that feature a distinct tactile texture. This helps you maintain your finger placement without needing to look down at the board.
The legends are applied using PBT dye-sublimation, which infuses the ink into the plastic itself. This method is highly durable and resistant to the shine or fading common with cheaper printing techniques.
The 1.5U and 2U convex spacebars are shaped to be more ergonomic for your thumbs. Their rounded profile makes them more comfortable to press from various angles, which is ideal for the thumb clusters found on split 40% keyboards.
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$48