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Head to head · Prices checked Nov 11, 2026

Redragon EISA K686 Pro vs Azio KB540

Get the Redragon EISA K686 Pro for knob.

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Quick verdict

Which one should you get?

Get the

Redragon EISA K686 Pro

Knob

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
$64 at Redragon

Get the

Azio KB540

Build quality in the bottom 40% of 100% boards under $100.

$45 at Azio

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.

Redragon EISA K686 Pro

Azio KB540

  • Layout size

    90%

    100%

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Bluetooth, Wired

    Wireless for several devices and wired for lower latency

  • Knob

    Yes

    No

  • Display

    LED

    None

    A case display rather than a typing feature

  • Weight

    1,200 g

    816 g

    Heavier boards stay planted and lighter ones travel

KeebFinder scores

How we score
  • Redragon EISA K686 Pro
  • Azio KB540
Performance
78
65
Build quality
68
52
Productivity
83
77
Customizability
73
68
Portability
54
55

What they share

  • Hot-swappable
  • Case material: Plastic
See every spec side by side

Full specs

Redragon EISA K686 Pro vs Azio KB540 specs

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

11 of 22 specs differ

Redragon EISA K686 Pro

Azio KB540

Typing & switches

Switch options

Linear
—

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
—

Sound dampening

Yes
No

Layout

Layout size

90%
100%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

LED
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired

Max polling rate

1,000 Hz
—

Battery

4,000 mAh
—

USB-C

Yes
Yes

Build & materials

Case material

Plastic
Plastic

Plate material

Plastic
—

Keycaps

PBT
ABS, PBT

Weight

1,200 g
816 g

Dimensions

90 x 430 x 90 mm
27 x 195 x 459 mm

Backlight

RGB, south-facing
RGB

Firmware & software

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2024
2020

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.

Redragon EISA K686 Pro2 stores
Azio KB5402 stores

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