Not sure which keyboard to choose? Try the Keyboard Finder now!

Head to head · Prices checked Nov 10, 2026

Keychron K15 Max vs Niuniu KB40

KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Quick verdict

Which one should you get?

Get the

Keychron K15 Max

Build quality in the top 15% of 75% boards under $100.

Rules this board out

  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • No numpad.

Get the

Niuniu KB40

Build quality in the bottom 40% of 40% boards under $300.

Rules this board out

  • Compact layout only. No function row, dedicated arrow keys, or numpad.

What actually differs

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.

Keychron K15 Max

Niuniu KB40

  • Layout size

    75%

    40%

  • Low profile

    Yes

    No

  • Ergonomics

    Alice

    Ortholinear

  • Case material

    ABS, Aluminum

    Aluminum

  • Mount style

    PCB Mount

    Gasket Mount

KeebFinder scores

How we score
  • Keychron K15 Max
  • Niuniu KB40
Performance
81
47
Build quality
80
67
Productivity
93
80
Customizability
88
63
Portability
79
88

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Sound dampening
See every spec side by side

Full specs

Keychron K15 Max vs Niuniu KB40 specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

11 of 26 specs differ

Keychron K15 Max

Niuniu KB40

Typing & switches

Switch options

Clicky, Linear, Tactile
—

Hot-swappable

Yes
Yes

Mount style

PCB Mount
Gasket Mount

Low profile

Yes
No

Sound dampening

Yes
Yes

Layout

Layout size

75%
40%

Layout standard

ANSI
ANSI

Ergonomics

Alice
Ortholinear

Display

None
None

Media keys

Yes
No

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz
—

Battery

2,000 mAh
—

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
Aluminum

Plate material

—
Aluminum, FR4

Keycaps

PBT
—

Weight

700 g
—

Dimensions

29 x 370 x 143 mm
—

Typing angle

3°
—

Backlight

RGB
None

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2024
2026

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Lowest price across stores, Amazon excluded.

Niuniu KB402 stores

Still torn?

Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.