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Head to head · Prices checked Nov 12, 2026

Keychron K6 Pro vs Yunzii AL66QMK or 2.4 GHz

Get the Keychron K6 Pro for QMK/VIA customization and ISO layout options, or the Yunzii AL66 for 2.4 GHz wireless, a gasket mount, and a control knob.

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Quick verdict

Which one should you get?

Get the

Keychron K6 Pro

Build quality in the top 5% of 65% boards under $100.

If you want

  • QMK and VIA support, with vendor-described key remapping and macros.
  • Available in ISO, ANSI, and JIS layout options.
  • Linear, tactile, and clicky switch options, plus a listed 1000 Hz polling rate.

Rules this board out

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

Get the

Yunzii AL66

Battery

Build quality in the top 30% of 65% boards under $100.

If you want

  • 2.4 GHz wireless connectivity in addition to Bluetooth and wired connections.
  • Metal knob for controlling RGB modes, brightness, or volume.
  • Gasket mount with a slotted polycarbonate plate.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

Bottom line

Choose the Keychron K6 Pro if QMK/VIA customization, ISO layout options, multiple switch types, or its listed 1000 Hz polling rate are priorities. Choose the Yunzii AL66 if you want 2.4 GHz wireless, a metal control knob, or a gasket mount with a polycarbonate plate. Both have south-facing LEDs, so consider the stated keycap fit and shine-through limitations when choosing either board.

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.

Keychron K6 Pro

Yunzii AL66

  • Connection

    Bluetooth, Wired

    Bluetooth, 2.4 GHz, Wired

    Wireless for several devices and wired for lower latency

  • Battery

    4,000 mAh

    4,600 mAh

    A larger battery means fewer cables during the day

  • Case material

    ABS, Aluminum, Plastic

    Aluminum

  • Switch options

    Clicky, Linear, Tactile

    Clicky

  • Mount style

    PCB Mount, Tray Mount

    Gasket Mount, Plate Mount

KeebFinder scores

How we score
  • Keychron K6 Pro
  • Yunzii AL66
Performance
73
72
Build quality
89
74
Productivity
91
77
Customizability
96
75
Portability
88
89

What they share

  • Layout size: 65%
  • Hot-swappable
  • Sound dampening
See every spec side by side

Best for

What will you mostly use it for?

The K6 Pro is the more suitable choice for remapping-focused work, ISO layouts, and buyers who prioritize a lighter board. The AL66 stands out for a wireless setup that includes 2.4 GHz and for its physical control knob. Modders get more explicitly documented firmware and switch customization options with the K6 Pro, while the AL66 offers a gasket mount and polycarbonate plate. Both can suit different gaming or creative setups, but the choice depends on whether the K6 Pro's listed polling rate or the AL66's extra connection mode and knob matters more.

For gaming

Pick the Yunzii AL66

  • The AL66 offers 2.4 GHz wireless alongside Bluetooth and wired connections.
  • Its metal knob can control RGB modes, brightness, or volume.
  • The K6 Pro lists a 1000 Hz polling rate, while no polling rate is specified for the AL66.

Full specs

Keychron K6 Pro vs Yunzii AL66 specs

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

15 of 27 specs differ

Keychron K6 Pro

Yunzii AL66

Typing & switches

Switch options

Clicky, Linear, Tactile
Clicky

Hot-swappable

Yes
Yes

Mount style

PCB Mount, Tray Mount
Gasket Mount, Plate Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

65%
65%

Layout standard

ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-SW, ISO-UK, JIS
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Media keys

Yes
Yes

Connectivity & battery

Connection

Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz
—

Battery

4,000 mAh
4,600 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum, Plastic
Aluminum

Plate material

Steel
Polycarbonate

Keycaps

ABS, PBT
PBT

Weight

890 g
1,145 g

Dimensions

27 x 317 x 107 mm
42 x 113 x 322 mm

Typing angle

4°, 6°
—

Backlight

RGB, south-facing
RGB, south-facing

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2022
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.

Yunzii AL663 stores

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Keychron K6 Pro

  • Keychron

    ISO-DE, ISO-UK, ISO-FR, ISO-ES, ISO-SW

    In stockShips to you

    Go to Keychron
  • Keychron (DE)

    ISO-DE, ISO-UK, ISO-FR, ISO-ES, ISO-SW

    In stockDoes not ship to you

    Go to Keychron (DE)

Yunzii AL66

No ISO layout at the stores we track.

FAQ

Keychron K6 Pro vs Yunzii AL66: your questions

Choose the K6 Pro for QMK/VIA support, ISO layout options, and its listed 1000 Hz polling rate. Choose the AL66 for 2.4 GHz wireless, a metal control knob, and a gasket mount.

Yes, the K6 Pro lists both QMK and VIA support. Keychron describes using its Launcher web app for key customization, remapping, and macros.

The AL66 product listing says it is not QMK compatible and not VIA compatible. Its listed features include hot-swappable switches and a control knob instead.

Yes, the AL66 supports 2.4 GHz wireless, Bluetooth, and a wired USB-C connection. The K6 Pro lists Bluetooth and wired connections, but not 2.4 GHz.

The K6 Pro is listed in ISO variants, including UK, German, Nordic, French, and Spanish, as well as ANSI and JIS options. The AL66 is listed as ANSI only.

The AL66 has a metal knob that can control RGB modes, brightness, or volume. The K6 Pro's listed extra features do not include a knob.

Both keyboards list hot-swappable switches. Keychron says the K6 Pro supports almost all 3-pin and 5-pin MX-style switches, while the AL66 listing specifies support for 3-pin and 5-pin switches.

The K6 Pro is listed at 890 g, while the AL66 is listed at 1145 g. The K6 Pro is the lighter option based on those listed weights.

The K6 Pro lists tray mount and PCB mount. The AL66 lists a gasket mount and plate mount, and its vendor describes a slotted polycarbonate plate.

Both keyboards have south-facing LEDs, and their compatibility notes warn that shine-through legends stay dark. The notes also caution that some sculpted keycaps can clip the LED.

The K6 Pro lists linear, tactile, and clicky switch types. The AL66 is listed with clicky switches, while its vendor description separately identifies a Yunzii Milk linear switch.

The K6 Pro is the clearer fit for key-function customization because it lists QMK and VIA support, and Keychron describes remapping and macros. The AL66 product listing says it is not QMK or VIA compatible.

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