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Head to head · Prices checked Oct 23, 2026

Keychron K2 Max vs LANGTU LT84

Get the Keychron K2 Max for qmk. Get the LANGTU LT84 for rapid trigger 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 K2 Max

LANGTU LT84

  • Rapid trigger

    No

    Yes

  • Mount style

    PCB Mount, Plate Mount

    Sandwich Mount

  • Knob

    No

    Yes

  • Display

    None

    Yes

  • QMK

    Yes

    No

KeebFinder scores

How we score
  • Keychron K2 Max
  • LANGTU LT84
Performance
81
75
Build quality
86
50
Productivity
95
83
Customizability
91
73
Portability
79
77

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • 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

LANGTU LT84

No owner reviews collected yet.

Full specs

Keychron K2 Max vs LANGTU LT84 specs

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

12 of 28 specs differ

Keychron K2 Max

LANGTU LT84

Typing & switches

Switch options

Clicky, Linear, Tactile
—

Rapid trigger

No
Yes

Hot-swappable

Yes
Yes

Mount style

PCB Mount, Plate Mount
Sandwich 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
Yes

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
—

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
—

Plate material

Steel
—

Keycaps

PBT
PBT

Weight

940 g
—

Dimensions

32 x 317 x 122 mm
29 x 138 x 362 mm

Typing angle

5°
—

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2024
2023

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
LANGTU LT842 stores
  • MechkeysCN

    In stock
    $89Visit
  • AmazonGlobal

    Check price
    ~$89Visit

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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