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Head to head · Prices checked Oct 28, 2026

Keychron K2 Max vs Redragon UCAL K673 Pro

Get the Redragon UCAL K673 Pro for knob.

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Quick verdict

Which one should you get?

Get the

Keychron K2 Max

Build quality in the top 5% 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.

Get the

Redragon UCAL K673 Pro

Knob

Build quality in the bottom 45% of 75% boards under $100.

Rules this board out

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

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

Redragon UCAL K673 Pro

  • Case material

    ABS, Aluminum

    Plastic

  • Switch options

    Clicky, Linear, Tactile

    Linear

  • Mount style

    PCB Mount, Plate Mount

    Gasket Mount

  • Knob

    No

    Yes

  • Weight

    940 g

    1,200 g

    Heavier boards stay planted and lighter ones travel

KeebFinder scores

How we score
  • Keychron K2 Max
  • Redragon UCAL K673 Pro
Performance
81
66
Build quality
86
63
Productivity
95
69
Customizability
91
58
Portability
79
75

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Battery: 4,000 mAh
  • Sound dampening
  • Keycaps: PBT
See every spec side by side

Full specs

Keychron K2 Max vs Redragon UCAL K673 Pro specs

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

15 of 27 specs differ

Keychron K2 Max

Redragon UCAL K673 Pro

Typing & switches

Switch options

Clicky, Linear, Tactile
Linear

Hot-swappable

Yes
Yes

Mount style

PCB Mount, Plate Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

75%
75%

Layout standard

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

Ergonomics

Standard
Standard

Knob

No
Yes

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
—

Battery

4,000 mAh
4,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
Plastic

Plate material

Steel
—

Keycaps

PBT
PBT

Weight

940 g
1,200 g

Dimensions

32 x 317 x 122 mm
37 x 335 x 37 mm

Typing angle

5°
—

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2024
2023

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

Redragon UCAL K673 Pro

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.

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Lowest price across stores, Amazon excluded.

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