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Head to head · Prices checked Oct 21, 2026

Keychron K2 Max vs Neo One of Zero Si75 HE

Get the Neo One of Zero Si75 HE for hall effect and rapid trigger.

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

Neo One of Zero Si75 HE

  • Hall effect (magnetic)

    No

    Yes

  • Rapid trigger

    No

    Yes

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wired

  • Max polling rate

    1,000 Hz

    8,000 Hz

  • Case material

    ABS, Aluminum

    ABS, Polycarbonate

KeebFinder scores

How we score
  • Keychron K2 Max
  • Neo One of Zero Si75 HE
Performance
81
95
Build quality
86
70
Productivity
95
91
Customizability
91
74
Portability
79
65

What they share

  • Layout size: 75%
  • Hot-swappable
  • Sound dampening
  • Keycaps: PBT
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 K2 Max

4.5

2 owner reviews

Praise
“Négatif: Le temps de livraison et la clareté des infos”
EvanVerified buyer· via Keychron

Neo One of Zero Si75 HE

No owner reviews collected yet.

Full specs

Keychron K2 Max vs Neo One of Zero Si75 HE specs

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

15 of 29 specs differ

Keychron K2 Max

Neo One of Zero Si75 HE

Typing & switches

Switch options

Clicky, Linear, Tactile
Magnetic

Hall effect (magnetic)

No
Yes

Rapid trigger

No
Yes

Hot-swappable

Yes
Yes

Mount style

PCB Mount, Plate Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
Yes

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
Wired

Max polling rate

1,000 Hz
8,000 HzBetter

Battery

4,000 mAh
Wired only

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
ABS, Polycarbonate

Plate material

Steel
Aluminum

Keycaps

PBT
PBT

Weight

940 g
—

Dimensions

32 x 317 x 122 mm
—

Typing angle

5°
—

Backlight

RGB, south-facing
RGB, south-facing

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2024
2026

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
    $94Visit
  • Keychron (DE)DE

    In stock
    $127Visit
  • AmazonGlobal

    Check price
    Visit
  • MKUS

    Out of stock
    $120Visit
  • MKUS

    In stock
    $114Visit
  • AmazonGlobal

    Check price
    ~$114Visit

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