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Head to head · Prices checked Nov 2, 2026

Ajazz AK820 Pro vs PromoType Arterlier Lin Curve Pack

Get the Ajazz AK820 Pro for hot-swappable and knob.

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Quick verdict

Which one should you get?

Get the

Ajazz AK820 Pro

Hot-swappable

Build quality in the bottom 50% of 75% boards under $100.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • No numpad.
$55 at Epomaker

Get the

PromoType Arterlier Lin Curve Pack

Build quality in the bottom 5% of 40% boards under $150.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • Compact layout only. No function row, dedicated arrow keys, or numpad.
$40 at zFrontier

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.

Ajazz AK820 Pro

PromoType Arterlier Lin Curve Pack

  • Layout size

    75%

    40%

  • Hot-swappable

    Yes

    No

    Switch changes without soldering

  • Knob

    Yes

    No

  • Display

    TFT

    None

    A case display rather than a typing feature

  • Sound dampening

    Yes

    No

KeebFinder scores

How we score
  • Ajazz AK820 Pro
  • PromoType Arterlier Lin Curve Pack
Performance
61
43
Build quality
65
42
Productivity
82
58
Customizability
72
40
Portability
79
61
See every spec side by side

Full specs

Ajazz AK820 Pro vs PromoType Arterlier Lin Curve Pack specs

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

11 of 21 specs differ

Ajazz AK820 Pro

PromoType Arterlier Lin Curve Pack

Typing & switches

Switch options

Linear
—

Hot-swappable

Yes
No

Mount style

Gasket Mount
—

Sound dampening

Yes
No

Layout

Layout size

75%
40%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

TFT
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
—

Battery

4,000 mAh
—

USB-C

Yes
No

Build & materials

Case material

ABS, Aluminum
—

Plate material

Polycarbonate
—

Keycaps

PBT
PC

Weight

810 g
—

Dimensions

40 x 327 x 136 mm
—

Backlight

RGB, south-facing
None

Firmware & software

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2023
2026

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.

Ajazz AK820 Pro4 stores
PromoType Arterlier Lin Curve Pack2 stores

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