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Head to head · Prices checked Nov 11, 2026

Mechboards CFTKB Mysterium Kit V1 vs Niuniu KB40

Get the Niuniu KB40 for hot-swappable and sound dampening.

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Quick verdict

Which one should you get?

Get the

Mechboards CFTKB Mysterium Kit V1

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

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • No numpad.

Get the

Niuniu KB40

Hot-swappable

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

Rules this board out

  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
  • 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.

Mechboards CFTKB Mysterium Kit V1

Niuniu KB40

  • Layout size

    75%

    40%

  • Hot-swappable

    No

    Yes

    Switch changes without soldering

  • Ergonomics

    Standard

    Ortholinear

  • Case material

    Acrylic

    Aluminum

  • Sound dampening

    No

    Yes

KeebFinder scores

How we score
  • Mechboards CFTKB Mysterium Kit V1
  • Niuniu KB40
Performance
43
47
Build quality
48
67
Productivity
43
80
Customizability
46
63
Portability
56
88
See every spec side by side

Full specs

Mechboards CFTKB Mysterium Kit V1 vs Niuniu KB40 specs

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

10 of 14 specs differ

Mechboards CFTKB Mysterium Kit V1

Niuniu KB40

Typing & switches

Hot-swappable

No
Yes

Mount style

—
Gasket Mount

Sound dampening

No
Yes

Layout

Layout size

75%
40%

Layout standard

ANSI, ISO
ANSI

Ergonomics

Standard
Ortholinear

Display

None
None

Connectivity & battery

Connection

—
Bluetooth, 2.4 GHz, Wired

USB-C

No
Yes

Build & materials

Case material

Acrylic
Aluminum

Plate material

FR4
Aluminum, FR4

Backlight

None
None

Firmware & software

Mac & Windows

No
Yes

Extras

Released

2021
2026

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Mechboards CFTKB Mysterium Kit V1

Listed on the product, not split by store: ISO.

Niuniu KB40

No ISO layout at the stores we track.

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

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