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Head to head · Prices checked Oct 25, 2026

AULA F99 vs Xinmeng A66

Get the AULA F99 for rapid trigger and the 8,000 mAh battery. Get the Xinmeng A66 for knob.

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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 F99

Xinmeng A66

  • Layout size

    96%

    65%

  • Rapid trigger

    Yes

    No

    Faster resets help in games and not in normal typing

  • Battery

    8,000 mAh

    4,600 mAh

    A larger battery means fewer cables during the day

  • Case material

    ABS, PBT, Plastic

    Aluminum

  • Knob

    No

    Yes

KeebFinder scores

How we score
  • AULA F99
  • Xinmeng A66
Performance
58
40
Build quality
57
63
Productivity
87
65
Customizability
65
66
Portability
62
88

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
See every spec side by side

Full specs

AULA F99 vs Xinmeng A66 specs

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

11 of 22 specs differ

AULA F99

Xinmeng A66

Typing & switches

Switch options

Linear
—

Rapid trigger

Yes
No

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
No

Screw-in stabilizers

Yes
No

Layout

Layout size

96%
65%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Connectivity & battery

Connection

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

Battery

8,000 mAhBetter
4,600 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS, PBT, Plastic
Aluminum

Plate material

FR4, Plastic, Polycarbonate
FR4, Plastic

Keycaps

PBT
—

Weight

1,023 g
1,800 g

Dimensions

43 x 147 x 391 mm
20 x 113 x 322 mm

Backlight

RGB, north-facing
None

Firmware & software

Mac & Windows

Yes
Yes

Extras

Released

2023
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 F994 stores
Xinmeng A663 stores

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