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Head to head · Prices checked Oct 31, 2026

AULA F99 Pro vs Ktechs Rainy75

Get the AULA F99 Pro for hot-swappable and the 8,000 mAh battery.

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Quick verdict

Which one should you get?

Get the

AULA F99 Pro

Hot-swappable

Build quality in the bottom 50% of 96% boards under $100.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • Compact full-size layout. The numpad is present, the gaps of a full-size board are not.

Get the

Ktechs Rainy75

Build quality in the bottom 30% of 75% boards under $50.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • No numpad.

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 Pro

Ktechs Rainy75

  • Layout size

    96%

    75%

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wireless

    Wireless for several devices and wired for lower latency

  • Hot-swappable

    Yes

    No

    Switch changes without soldering

  • Battery

    8,000 mAh

    3,500 mAh

    A larger battery means fewer cables during the day

  • Knob

    Yes

    No

KeebFinder scores

How we score
  • AULA F99 Pro
  • Ktechs Rainy75
Performance
66
47
Build quality
62
65
Productivity
83
46
Customizability
66
42
Portability
63
74

What they share

  • Mount style: Gasket Mount
See every spec side by side

Full specs

AULA F99 Pro vs Ktechs Rainy75 specs

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

11 of 20 specs differ

AULA F99 Pro

Ktechs Rainy75

Typing & switches

Switch options

Linear
—

Hot-swappable

Yes
No

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
No

Layout

Layout size

96%
75%

Layout standard

ANSI
—

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
LED

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wireless

Max polling rate

—
1,000 Hz

Battery

8,000 mAhBetter
3,500 mAh

USB-C

Yes
No

Build & materials

Case material

ABS
—

Plate material

Plastic, Polycarbonate
FR4, Plastic, Polycarbonate

Weight

1,023 g
—

Dimensions

43 x 146 x 390 mm
—

Backlight

RGB, south-facing
None

Firmware & software

Mac & Windows

Yes
No

Extras

Released

2024
2024

Where to buy

Compare prices

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

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Lowest price across stores, Amazon excluded.

AULA F99 Pro3 stores

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