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Head to head · Prices checked Oct 23, 2026

Fl·esports FL Esports CMK75 vs LANGTU LT84Gasket vs Gaming Features

Choose the CMK75 for a premium typing feel with its gasket mount and metal accents, or the LT84 for gaming-focused features like rapid trigger at a lower cost.

Quick verdict

Which one should you get?

Get the

Fl·esports FL Esports CMK75

Gasket

If you want

  • Gasket mount structure with a slotted PC plate for a softer, more cushioned typing feel.
  • South-facing RGB LEDs, which are compatible with more aftermarket keycap sets.
  • Available with a metal case option and features a decorative metallic panel for a premium look.

And can live with

  • Taller overall profile (46mm) compared to the LT84, which may require a higher wrist rest.
  • Lacks the explicit rapid trigger and N-Key Rollover features listed for the LT84.
  • Generally carries a higher price point than the LANGTU LT84.

Get the

LANGTU LT84

Gaming Features

If you want

  • Includes a Rapid Trigger feature, which is advantageous for competitive gaming.
  • Explicitly supports both Mac and Windows systems out of the box.
  • Slimmer profile (29mm height) for a potentially more portable and ergonomic setup.

And can live with

  • Uses a sandwich mount instead of a gasket mount, which typically offers a firmer typing feel.
  • Vendor description does not mention south-facing LEDs, which may limit keycap compatibility.
  • The listed build materials do not include a metal case option, potentially feeling less premium.

Bottom line

Your primary use case dictates the choice here. If you value a softer, more customizable typing sound and feel above all, the FL·ESPORTS CMK75's gasket mount and detailed sound-dampening stack are compelling. If your budget is tighter and you want features directly beneficial for gaming, like rapid trigger, or need assured Mac compatibility, the LANGTU LT84 is the more pragmatic pick.

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.

Fl·esports FL Esports CMK75

LANGTU LT84

  • Rapid trigger

    No

    Yes

  • Mount style

    Gasket Mount

    Sandwich Mount

  • Display

    TFT

    Yes

  • Backlight

    RGB, south-facing

    RGB

  • N-key rollover

    No

    Yes

KeebFinder scores

How we score
  • Fl·esports FL Esports CMK75
  • LANGTU LT84
Performance
51
75
Build quality
57
50
Productivity
69
83
Customizability
68
73
Portability
78
77

What they share

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

Best for

What will you mostly use it for?

The LANGTU LT84 takes the lead for gaming and office use due to its rapid trigger feature, explicit Mac/Windows support, and slimmer profile. The FL·ESPORTS CMK75 is the better choice for modders seeking a gasket-mounted typing experience. For programming, travel, and content creation, the keyboards are closely matched, sharing core features like hot-swap sockets, knobs, and wireless connectivity, making the choice more subjective.

For gaming

Pick the LANGTU LT84

  • The LANGTU LT84 explicitly lists Rapid Trigger as a feature, which is a gaming-specific function.
  • It also includes N-Key Rollover for full-key conflict-free operation during complex key presses.
  • The manufacturer lists full-key conflict-free operation as a key feature.

Full specs

Fl·esports FL Esports CMK75 vs LANGTU LT84 specs

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

7 of 20 specs differ

Fl·esports FL Esports CMK75

LANGTU LT84

Typing & switches

Switch options

Clicky, Linear, Tactile
—

Rapid trigger

No
Yes

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Sandwich Mount

Sound dampening

Yes
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

TFT
Yes

Connectivity & battery

Connection

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

USB-C

Yes
Yes

Build & materials

Case material

Metal, Plastic
—

Plate material

Plastic, Steel
—

Keycaps

PBT
PBT

Dimensions

46 x 155 x 340 mm
29 x 138 x 362 mm

Backlight

RGB, south-facing
RGB

Firmware & software

N-key rollover

No
Yes

Mac & Windows

No
Yes

Extras

Released

2023
2023

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • MechkeysCN

    In stock
    $110Visit
  • AmazonGlobal

    Check price
    ~$110Visit
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.

FAQ

Fl·esports FL Esports CMK75 vs LANGTU LT84: your questions

The FL·ESPORTS CMK75 is designed for a softer typing feel. It uses a gasket mount and a slotted PC positioning plate, which the manufacturer states provides a 'silky smooth' experience. The LANGTU LT84 uses a sandwich mount, which typically results in a firmer, more direct feedback.

Yes, rapid trigger is listed as a feature in the LANGTU LT84's metadata. This is a gaming-oriented function that allows for faster keystroke resetting, which can be beneficial in fast-paced competitive games.

Both keyboards use standard ANSI layouts, so physical keycap compatibility is the same. However, the LANGTU LT84 explicitly lists 'Mac/Win Support' in its features, suggesting its firmware or included keycaps may have better out-of-the-box mapping for macOS.

The vendor description for the LANGTU LT84 specifically mentions an 'extra-long battery life'. There is no comparable claim made in the provided description for the FL·ESPORTS CMK75, suggesting the LT84 may have an advantage in this area.

Only the FL·ESPORTS CMK75 is confirmed to have south-facing RGB LEDs, as stated in its metadata and vendor description. South-facing LEDs prevent interference with Cherry-profile keycaps. The LANGTU LT84's listing does not specify LED orientation.

The CMK75 uses a multi-layer design with PORON cotton, an IXPE under-shaft pad, and bottom padding. The LT84 uses a triple-layer design with EVA cotton padding, bottom rubber padding, and undershaft silicone padding. Both are designed to reduce case resonance.

Yes, both the FL·ESPORTS CMK75 and LANGTU LT84 feature full-key hot-swappable sockets. This means you can replace the mechanical switches without any soldering required, using compatible aftermarket switches.

Yes, both keyboards feature a screen. The CMK75 has a 'Colorful TFT Display Screen' and the LT84 has a 'Multi-Function Colorful Display Screen'. Both vendor descriptions state the screens can be customized with images or GIFs.

The core mechanical difference is the mount style. The FL·ESPORTS CMK75 uses a gasket mount, where the plate is suspended on soft gaskets. The LANGTU LT84 uses a sandwich mount, where the plate is fixed between the top and bottom case layers. This fundamentally changes the typing feel and sound.

Based on listed dimensions, the LANGTU LT84 is significantly slimmer with a height of 29mm compared to the CMK75's 46mm. This lower profile makes the LT84 easier to pack into a bag or laptop sleeve, giving it a portability edge.

According to its vendor description, the FL·ESPORTS CMK75 is available with customized Glacier Pink (linear), Glacier Purple (tactile), and Kailh Box Marshmallow switches. The metadata also confirms it offers linear, tactile, and clicky switch types.

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