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Head to head · Prices checked Nov 7, 2026

Keychron K2 Max vs MelGeek O2

Get the Keychron K2 Max for hot-swappable and the 4,000 mAh battery.

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Quick verdict

Which one should you get?

Get the

Keychron K2 Max

Hot-swappable

Build quality in the top 10% of 75% boards under $100.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • No numpad.
$94 at Keychron

Get the

MelGeek O2

Build quality in the top 50% of Numpad boards under $150.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
  • Numpad only. This is not a full keyboard.
$129 at MelGeek

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 K2 Max

MelGeek O2

  • Layout size

    75%

    Numpad

  • Hot-swappable

    Yes

    No

    Switch changes without soldering

  • Battery

    4,000 mAh

    2,500 mAh

    A larger battery means fewer cables during the day

  • Case material

    ABS, Aluminum

    ABS, Aluminum, Polycarbonate

  • Mount style

    PCB Mount, Plate Mount

    Gasket Mount

KeebFinder scores

How we score
  • Keychron K2 Max
  • MelGeek O2
Performance
81
54
Build quality
85
65
Productivity
95
54
Customizability
91
50
Portability
79
83

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Max polling rate: 1,000 Hz
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

Full specs

Keychron K2 Max vs MelGeek O2 specs

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

18 of 26 specs differ

Keychron K2 Max

MelGeek O2

Typing & switches

Switch options

Clicky, Linear, Tactile
—

Hot-swappable

Yes
No

Mount style

PCB Mount, Plate Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

75%
Numpad

Layout standard

ANSI, ISO, ISO-DE, ISO-Nordic, ISO-SW, ISO-UK
ANSI

Ergonomics

Standard
Standard

Display

None
None

Media keys

Yes
No

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
1,000 Hz

Battery

4,000 mAhBetter
2,500 mAh

USB-C

Yes
No

Build & materials

Case material

ABS, Aluminum
ABS, Aluminum, Polycarbonate

Plate material

Steel
Polycarbonate

Keycaps

PBT
PBT

Weight

940 g
650 g

Dimensions

32 x 317 x 122 mm
135 x 326 x 27 mm

Typing angle

5°
4°

Backlight

RGB, south-facing
RGB, north-facing

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2024
2025

For EU buyers

ISO layouts by store

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

Keychron K2 Max

  • Keychron

    ISO-DE, ISO-UK, ISO-Nordic, ISO-SW

    In stockShips to you

  • Keychron (DE)

    ISO-DE, ISO-UK, ISO-SW

    Out of stockDoes not ship to you

MelGeek O2

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.

Keychron K2 Max4 stores
MelGeek O22 stores

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