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Head to head · Prices checked Oct 23, 2026

Ducky OK M 98 vs MMD KM40

Get the Ducky OK M 98 for knob. Get the MMD KM40 for qmk.

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.

Ducky OK M 98

MMD KM40

  • Layout size

    98%

    40%

  • Switch options

    Clicky, Linear

    Linear, Tactile

  • Knob

    Yes

    No

  • QMK

    No

    Yes

  • Backlight

    RGB, north-facing

    RGB

KeebFinder scores

How we score
  • Ducky OK M 98
  • MMD KM40
Performance
70
61
Build quality
73
83
Productivity
89
69
Customizability
78
84
Portability
52
84

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
  • VIA
  • Sound dampening
  • Plate material: Polycarbonate
See every spec side by side

From real owners

What owners say

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

Ducky OK M 98

No owner reviews collected yet.

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

Full specs

Ducky OK M 98 vs MMD KM40 specs

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

6 of 22 specs differ

Ducky OK M 98

MMD KM40

Typing & switches

Switch options

Clicky, Linear
Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

98%
40%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

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

—
Aluminum

Plate material

Polycarbonate
Polycarbonate

Keycaps

PBT
PBT

Weight

—
620 g

Backlight

RGB, north-facing
RGB

Firmware & software

QMK

No
Yes

VIA

Yes
Yes

Mac & Windows

Yes
No

Extras

Released

2026
2026

Where to buy

Compare prices

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

  • MKUS

    In stock
    $79Visit
  • AmazonGlobal

    Check price
    ~$79Visit
MMD KM402 stores
  • MonacoKeysDE

    In stock
    $84Visit
  • AmazonGlobal

    Check price
    ~$84Visit

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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