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Head to head · Prices checked Oct 31, 2026

Keychron B40 vs Other MKC75

Get the Other MKC75 for hot-swappable.

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Quick verdict

Which one should you get?

Get the

Keychron B40

Build quality in the bottom 15% of 75% boards under $50.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
$49 at Keychron

Get the

Other MKC75

Hot-swappable

Build quality in the top 15% of 75% boards under $200.

$39 at Input Gear

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 B40

Other MKC75

  • Hot-swappable

    No

    Yes

    Switch changes without soldering

  • Low profile

    Yes

    No

  • Ergonomics

    Alice

    Split Spacebar

  • Case material

    ABS

    Aluminum

  • Weight

    595 g

    1,592 g

    Heavier boards stay planted and lighter ones travel

KeebFinder scores

How we score
  • Keychron B40
  • Other MKC75
Performance
53
72
Build quality
46
83
Productivity
82
84
Customizability
46
91
Portability
78
78

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Knob
See every spec side by side

Full specs

Keychron B40 vs Other MKC75 specs

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

11 of 25 specs differ

Keychron B40

Other MKC75

Typing & switches

Switch options

Clicky, Linear, Tactile
—

Hot-swappable

No
Yes

Mount style

—
Top Mount

Low profile

Yes
No

Sound dampening

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI, ISO

Ergonomics

Alice
Split Spacebar

Knob

Yes
Yes

Display

None
None

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
—

Battery

800 mAh
—

USB-C

Yes
Yes

Build & materials

Case material

ABS
Aluminum

Plate material

—
Aluminum, Polycarbonate, POM

Keycaps

ABS
—

Weight

595 g
1,592 g

Dimensions

—
33 x 320 x 134 mm

Typing angle

7°
7°

Backlight

None
RGB

Firmware & software

QMK

No
Yes

VIA

No
Yes

Mac & Windows

Yes
No

Extras

Released

2026
2026

For EU buyers

ISO layouts by store

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

Keychron B40

No ISO layout at the stores we track.

Other MKC75

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

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.

Keychron B402 stores
Other MKC752 stores

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