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Head to head · Prices checked Oct 21, 2026

Keychron Q2 HE vs Sikakeyb Castle HM66

Get the Keychron Q2 HE for hot-swappable and knob.

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 Q2 HE

Sikakeyb Castle HM66

  • Connection

    Wired, Bluetooth, 2.4 GHz

    Wired

  • Hot-swappable

    Yes

    No

  • Case material

    Aluminum, Metal

    Aluminum

  • Switch options

    Clicky, Linear, Magnetic, Tactile

    Magnetic

  • Knob

    Yes

    No

KeebFinder scores

How we score
  • Keychron Q2 HE
  • Sikakeyb Castle HM66
Performance
98
86
Build quality
87
43
Productivity
94
52
Customizability
96
47
Portability
90
63

What they share

  • Layout size: 65%
  • Hall effect (magnetic)
  • Rapid trigger
  • Max polling rate: 8,000 Hz
  • Sound dampening
  • Plate material: Aluminum
See every spec side by side

From real owners

What owners say

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

Keychron Q2 HE

5.0

1 owner reviews

Praise
“This thing is pure quality from the software all the way to the build itself. It's got a lot of heft to it and the material is very nice. The Keychron software is amazing too, there is no app or anything you just go to the Keychron launcher on your browser…”
Carter M.Verified buyer· via Keychron

Sikakeyb Castle HM66

No owner reviews collected yet.

Full specs

Keychron Q2 HE vs Sikakeyb Castle HM66 specs

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

15 of 28 specs differ

Keychron Q2 HE

Sikakeyb Castle HM66

Typing & switches

Switch options

Clicky, Linear, Magnetic, Tactile
Magnetic

Hall effect (magnetic)

Yes
Yes

Rapid trigger

Yes
Yes

Hot-swappable

Yes
No

Mount style

Gasket Mount
—

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

65%
65%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

Connectivity & battery

Connection

Wired, Bluetooth, 2.4 GHz
Wired

Max polling rate

8,000 Hz
8,000 Hz

Battery

4,000 mAh
Wired only

USB-C

Yes
No

Build & materials

Case material

Aluminum, Metal
Aluminum

Plate material

Aluminum
Aluminum

Keycaps

PBT
PBT

Weight

1,650 g
630 g

Dimensions

43 x 328 x 121 mm
37 x 103 x 294 mm

Typing angle

7°
—

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2025
2024

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • KeychronHK

    In stock
    $229Visit
  • MKUS

    In stock
    $229Visit
  • Keychron (DE)DE

    In stock
    $275Visit
  • AmazonGlobal

    Check price
    Visit
  • MechkeysCN

    In stock
    $230Visit
  • AmazonGlobal

    Check price
    ~$230Visit

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