Chilkey ND75 LP vs NIUNIU @4075% vs 40% Low Profile Keyboard
Choose the Chilkey ND75 LP for a full-featured, ready-to-use experience, or the NIUNIU @40 for an ultra-compact, DIY-focused build.
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![[Pre-Order] @40 40% Low Profile Keyboard Kit by Niuniu](https://cdn.shopify.com/s/files/1/1674/0405/files/DSC_1222_1.jpg?v=1749523764&width=3840&quality=75)
4.5 · 4 reviews
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Which one should you get?
Get the
Chilkey ND75 LP
75%
Build quality in the top 35% of 75% boards under $150.
- Includes a multi-function LED screen for status information.
- Comes pre-built with LSA profile double-shot PBT keycaps and Aster linear switches.
- Features five layers of sound dampening foam for enhanced acoustics.
- Magnetic switches only. Standard MX switches will not fit.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- No numpad.
Get the
NIUNIU @40
40% Low Profile Keyboard
Build quality in the top 20% of 40% boards under $150.
- Extremely compact 40% form factor with a low 12.5mm front height.
- Offers a choice between ortholinear and staggered layout plates.
- Supports VIAL for open-source firmware customization.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
- Compact layout only. No function row, dedicated arrow keys, or numpad.
For most users, the Chilkey ND75 LP is the more practical choice, providing a balanced, feature-rich low-profile experience out of the box. Only consider the NIUNIU @40 if you specifically desire the challenge and portability of a 40% keyboard and enjoy building from a kit. Your decision ultimately comes down to needing a ready-to-use tool versus a compact project.
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
Chilkey ND75 LP
NIUNIU @40
Layout size
75%
40%
Hall effect (magnetic)
Yes
No
Adjustable actuation helps in games and not in normal typing
Ergonomics
Standard
Ortholinear
Display
Yes
None
A case display rather than a typing feature
Backlight
RGB, south-facing
None
RGB for looks and low light rather than speed
- Chilkey ND75 LP
- NIUNIU @40
- Performance
- 8247
- Build quality
- 7480
- Productivity
- 8780
- Customizability
- 7475
- Portability
- 8283
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Low profile
- Case material: Aluminum
- Sound dampening
- Plate material: FR4
What will you mostly use it for?
The Chilkey ND75 LP is the clear choice for gaming, office work, programming, and content creation due to its more complete key set and integrated features. The NIUNIU @40 wins for travel and modding, leveraging its ultra-small size and kit-based, customizable nature. Your primary task will dictate the winner, as these keyboards serve almost opposite ends of the usability spectrum.
Pick the Chilkey ND75 LP
- The Chilkey ND75 LP has a specified 1000Hz polling rate in wired and 2.4GHz modes.
- Its 75% layout retains dedicated arrow keys and function row, which are commonly used in games.
- It features N-Key Rollover for simultaneous key presses.
Chilkey ND75 LP vs NIUNIU @40 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
9 of 23 specs differ
Chilkey ND75 LP
NIUNIU @40
Hall effect (magnetic)
Hot-swappable
Mount style
Low profile
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Display
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Typing angle
Backlight
VIAL
N-key rollover
Mac & Windows
Released
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Chilkey ND75 LP vs NIUNIU @40: your questions
The Chilkey ND75 LP is better for beginners. It comes pre-assembled with keycaps and switches, and its 75% layout is much easier to learn than the 40% layout of the NIUNIU @40, which requires memorizing complex key layers.
You can, but it is not ideal. The 40% layout lacks dedicated arrow keys and a number row, which are often used in games. The Chilkey ND75 LP is a better gaming choice with its 1000Hz polling rate and more accessible key layout.
The Chilkey ND75 LP has Bluetooth 5.3 and 2.4GHz wireless, plus a wired USB-C mode. The NIUNIU @40 is offered in different connection models: Wired Only, Dual Mode (Bluetooth + Wired), or Tri Mode (2.4GHz + Bluetooth + Wired), depending on the kit you select.
The NIUNIU @40 offers deeper firmware customization as it supports VIAL. It is also a DIY kit, allowing you to choose every component. The Chilkey is hot-swappable and has a flexible mounting system, but uses proprietary software for key remapping.
The Chilkey ND75 LP comes pre-built with Chilkey Aster low-profile linear switches. The NIUNIU @40 is a barebones kit, so it does not include any switches; you must purchase compatible low-profile switches separately.
Yes. The vendor description states it uses two 1800mAh lithium batteries, for a total of 3600mAh, to power its wireless modes.
An ortholinear layout arranges keys in a straight grid without the staggered rows found on standard keyboards. The NIUNIU @40 kit offers an ortholinear plate as an option, which some users prefer for ergonomics.
Both keyboards include sound-dampening materials. The Chilkey ND75 LP specifically mentions five layers of sound dampening foam. The NIUNIU @40 kit includes foam sheets and silicone pads. With similar switches, both should be relatively quiet.
No. Only the Chilkey ND75 LP includes keycaps, which are LSA profile double-shot PBT. The NIUNIU @40 is a barebones kit, so you must source your own keycaps that fit a 40% layout.
Yes. The manufacturer lists MacOS compatibility for the Chilkey ND75 LP.
The Chilkey ND75 LP has a low typing angle, listed as 6.5° by the vendor. The NIUNIU @40 has an even lower front height of 12.5mm, which typically corresponds to a very shallow typing angle.
Not sold on either?
![[Pre-Order] ORTHO Roly-poly 40 R3 Keyboard Kit by Niuniu](https://cdn.shopify.com/s/files/1/1674/0405/files/42A5DCDF6CC2BFFDC11E43D62A22AC4B_56e3ae27-1b5a-4910-8d50-059f522426b7.jpg?v=1745208295&width=3840&quality=75)
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