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Head to head · Prices checked Oct 21, 2026

MMD KM40 vs sam Notfromsam S46 R2

Get the MMD KM40 for qmk and sound dampening.

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.

MMD KM40

sam Notfromsam S46 R2

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Bluetooth, Wired

  • Case material

    Aluminum

    Aluminum, Brass, Polycarbonate

  • Mount style

    Gasket Mount

    Top Mount

  • QMK

    Yes

    No

  • Sound dampening

    Yes

    No

KeebFinder scores

How we score
  • MMD KM40
  • sam Notfromsam S46 R2
Performance
61
62
Build quality
83
83
Productivity
69
54
Customizability
84
79
Portability
84
85

What they share

  • Layout size: 40%
  • Hot-swappable
  • VIA
See every spec side by side

From real owners

What owners say

Ratings and quotes collected from verified store reviews, including the critical ones.

MMD KM40

5.0

4 owner reviews

Praise
“Keycaps are dyesub, but still PBT Tactile switches feature a proper tactile feeling with great typing experience The case feels and looks really premium layer activation could be nicer but in the end you just gotta get used to the board”
Andi· via MonacoKeys

sam Notfromsam S46 R2

No owner reviews collected yet.

Full specs

MMD KM40 vs sam Notfromsam S46 R2 specs

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

6 of 21 specs differ

MMD KM40

sam Notfromsam S46 R2

Typing & switches

Switch options

Linear, Tactile
—

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Top Mount

Sound dampening

Yes
No

Layout

Layout size

40%
40%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired

Battery

2,000 mAh
—

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
Aluminum, Brass, Polycarbonate

Plate material

Polycarbonate
Polycarbonate, POM

Keycaps

PBT
—

Weight

620 g
—

Dimensions

—
28 x 264 x 98 mm

Typing angle

—
7°

Backlight

RGB
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
Yes

Extras

Released

2026
2026

Where to buy

Compare prices

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

MMD KM402 stores
  • MonacoKeysDE

    In stock
    $84Visit
  • AmazonGlobal

    Check price
    ~$84Visit
  • AmazonGlobal

    Check price
    ~$159Visit
  • DangkeebsUS

    Out of stock
    $159Visit

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.

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