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Head to head · Prices checked Oct 28, 2026

AULA F75 Max vs LANGTU LT84Gasket vs Sandwich

Choose the AULA F75 Max for its gasket mount, stated 1000 Hz polling rate, and richer documented sound-dampening details, or the LANGTU LT84 for its Rapid Trigger feature and side RGB strip.

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Quick verdict

Which one should you get?

Get the

AULA F75 Max

Gasket

Build quality in the top 25% of 75% boards under $100.

If you want

  • Gasket mount with a flex-cut PC plate and foam, silicone, IXPE, and PET dampening layers described by the vendor.
  • 1000 Hz polling rate listed for wired and 2.4 GHz modes.
  • TFT screen, with vendor-described time, battery, connection, and status information.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

Get the

LANGTU LT84

Sandwich

Build quality in the bottom 20% of 75% boards under $100.

If you want

  • Sandwich mount and three-layer sound-shock absorbing design described by the vendor, with EVA cotton, bottom rubber, and undershaft silicone padding.
  • Rapid Trigger is listed as an extra feature.
  • Vendor-described Sea-Air linear switches are factory-lubed.

Bottom line

For a more fully specified gaming and modding setup, choose the AULA F75 Max for its listed 1000 Hz polling rate, gasket construction, and detailed hot-swap support. Consider the LANGTU LT84 if Rapid Trigger, its side RGB strip, and its described screen and knob controls are more important to you. Both provide a 75% layout, three connection modes, and hot-swappable sockets.

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.

AULA F75 Max

LANGTU LT84

  • Rapid trigger

    No

    Yes

    Faster resets help in games and not in normal typing

  • Mount style

    Gasket Mount

    Sandwich Mount

  • Display

    TFT

    Yes

    A case display rather than a typing feature

  • Screw-in stabilizers

    Yes

    No

    Easier to tune than the plate-mount stabs you get prebuilt

  • Backlight

    RGB, south-facing

    RGB

    RGB for looks and low light rather than speed

KeebFinder scores

How we score
  • AULA F75 Max
  • LANGTU LT84
Performance
79
75
Build quality
76
50
Productivity
91
84
Customizability
78
73
Portability
80
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 F75 Max has the clearer edge for gaming, office use, and modding, based on its specified polling rate, battery capacity, and more detailed construction features. Programming is a close match because both offer hot-swap support, N-Key Rollover, and three connection modes. For travel, the shared compact layout and wireless options make the listed weight and dimensions relevant, though the LT84 has no listed weight. Content creators get a screen and knob on either board, with different controls described for each.

For gaming

Pick the AULA F75 Max

  • The F75 Max lists a 1000 Hz polling rate, while the LT84 listing does not specify one.
  • The F75 Max vendor describes wired and 2.4 GHz operation at 1000 Hz, alongside N-Key Rollover.
  • The LT84 lists Rapid Trigger, but its listing does not explain its behavior or provide a polling rate.

Full specs

AULA F75 Max vs LANGTU LT84 specs

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

7 of 24 specs differ

AULA F75 Max

LANGTU LT84

Typing & switches

Switch options

Linear
—

Rapid trigger

No
Yes

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Sandwich Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

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

Max polling rate

1,000 Hz
—

Battery

4,000 mAh
—

USB-C

Yes
Yes

Build & materials

Case material

ABS
—

Plate material

Plastic
—

Keycaps

PBT
PBT

Weight

960 g
—

Dimensions

44 x 328 x 143 mm
29 x 138 x 362 mm

Backlight

RGB, south-facing
RGB

Firmware & software

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.

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.

Lowest price across stores, Amazon excluded.

AULA F75 Max3 stores
LANGTU LT842 stores

FAQ

AULA F75 Max vs LANGTU LT84: your questions

The AULA F75 Max uses a gasket mount, while the LANGTU LT84 uses a sandwich mount. The F75 Max also lists a 1000 Hz polling rate and 4000mAh battery, while the LT84 lists Rapid Trigger and a side RGB strip.

The F75 Max lists a 1000 Hz polling rate, and its vendor describes that rate for wired and 2.4 GHz modes. The LT84 listing does not specify a polling rate.

Yes, Rapid Trigger appears in the LT84's extra features. The vendor description does not provide further details about how the feature works.

Yes, both list hot-swappable support. The F75 Max vendor specifies 3/5-pin switches, while the LT84 vendor describes full-key hot-swappable sockets.

Yes, both list Bluetooth, 2.4 GHz, and wired connectivity. The F75 Max vendor identifies USB-C as its wired connection, and the LT84 vendor describes wired USB Type-C.

The F75 Max lists a 4000mAh battery. The LT84 vendor describes its battery as extra-long lasting, but the product details do not specify its capacity.

Both products list a screen and knob support. The F75 Max vendor describes a TFT screen for time, battery, connection, and status, while the LT84 vendor describes a colorful display and a multifunction knob.

The F75 Max provides more specifically described modification options, including 3/5-pin hot-swap support and screw-in stabilizers. The LT84 also has hot-swappable sockets, which its vendor says can be changed without soldering.

The F75 Max metadata lists linear switches, and its vendor identifies them as factory-lubed LEOBOG Reaper switches. The LT84 vendor describes factory-lubed Sea-Air linear switches.

Yes, both product specifications list PBT keycaps. The F75 Max vendor further describes Cherry-profile keycaps.

The F75 Max lists south-facing RGB LEDs. Its compatibility note warns that shine-through legends may stay dark and some sculpted keycaps may clip the LED.

The F75 Max has a listed weight of 960g. The LT84's dimensions are listed, but its weight is not, so their relative weight cannot be confirmed.

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