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Head to head · Prices checked Oct 21, 2026

AULA F81 vs Apos NPKC RO75

Get the AULA F81 for knob. Get the Apos NPKC RO75 for the 6,000 mAh battery and via.

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 F81

Apos NPKC RO75

  • Battery

    4,000 mAh

    6,000 mAh

  • Case material

    Acrylic

    Aluminum

  • Knob

    Yes

    No

  • VIA

    No

    Yes

  • Keycaps

    PC

    ABS, PBT

KeebFinder scores

How we score
  • AULA F81
  • Apos NPKC RO75
Performance
51
86
Build quality
50
81
Productivity
74
88
Customizability
68
82
Portability
76
92

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
  • Sound dampening
See every spec side by side

Full specs

AULA F81 vs Apos NPKC RO75 specs

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

9 of 25 specs differ

AULA F81

Apos NPKC RO75

Typing & switches

Switch options

—
Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

Connectivity & battery

Connection

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

Max polling rate

—
4,000 Hz

Battery

4,000 mAh
6,000 mAhBetter

USB-C

No
Yes

Build & materials

Case material

Acrylic
Aluminum

Plate material

—
FR4, Polycarbonate

Keycaps

PC
ABS, PBT

Weight

—
1,680 g

Dimensions

—
35 x 312 x 135 mm

Typing angle

—
15°

Backlight

RGB
RGB

Firmware & software

VIA

No
Yes

VIAL

No
Yes

N-key rollover

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2024
2025

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

AULA F812 stores
  • MechkeysCN

    In stock
    $95Visit
  • AmazonGlobal

    Check price
    ~$95Visit
  • AposUS

    In stock
    $109Visit
  • AmazonGlobal

    Check price
    ~$109Visit

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