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Head to head · Prices checked Nov 7, 2026

Keychron K15 Pro vs Niuniu KB40

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Quick verdict

Which one should you get?

Get the

Keychron K15 Pro

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.
  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
  • 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 Pro

Niuniu KB40

  • Layout size

    75%

    40%

  • Connection

    Bluetooth, Wired

    Bluetooth, 2.4 GHz, Wired

    Wireless for several devices and wired for lower latency

  • Low profile

    Yes

    No

  • Ergonomics

    Alice

    Ortholinear

  • Case material

    ABS, Aluminum, Plastic

    Aluminum

KeebFinder scores

How we score
  • Keychron K15 Pro
  • Niuniu KB40
Performance
84
47
Build quality
82
67
Productivity
92
80
Customizability
92
63
Portability
81
88

What they share

  • Hot-swappable
See every spec side by side

Full specs

Keychron K15 Pro vs Niuniu KB40 specs

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

14 of 27 specs differ

Keychron K15 Pro

Niuniu KB40

Typing & switches

Switch options

Clicky, Linear, Tactile
—

Hot-swappable

Yes
Yes

Mount style

Tray Mount
Gasket Mount

Low profile

Yes
No

Sound dampening

No
Yes

Layout

Layout size

75%
40%

Layout standard

ANSI
ANSI

Ergonomics

Alice
Ortholinear

Knob

Yes
No

Display

None
None

Media keys

Yes
No

Connectivity & battery

Connection

Bluetooth, 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, Plastic
Aluminum

Plate material

—
Aluminum, FR4

Keycaps

PBT
—

Weight

696 g
—

Dimensions

12 x 370 x 143 mm
—

Typing angle

3°
—

Backlight

RGB, north-facing
None

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2023
2026

Where to buy

Compare prices

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

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Lowest price across stores, Amazon excluded.

Niuniu KB402 stores

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