Head to head · Prices checked Oct 30, 2026

ACGAM S99 vs Keychron Q6 Max

Get the ACGAM S99 for the 6,000 mAh battery. Get the Keychron Q6 Max for knob.

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ACGAM VGN S99 Wireless Mechanical Keyboard

Battery

ACGAM S99

No reviews

from$109at WhatGeek

Compare 2 stores

Knob

Keychron Q6 Max

3.8 · 25 reviews

from$200at MK

Compare 5 stores

Quick verdict

Which one should you get?

Get the

ACGAM S99

Battery

Build quality in the top 50% of 96% boards under $150.

Rules this board out

No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
Compact full-size layout. The numpad is present, the gaps of a full-size board are not.

$109 at WhatGeek

Get the

Keychron Q6 Max

Knob

Build quality in the top 5% of 100% boards under $300.

Rules this board out

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

$200 at MK

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.

ACGAM S99

Keychron Q6 Max

Layout size
96%
100%
Battery
6,000 mAh
4,000 mAh
A larger battery means fewer cables during the day
Switch options
Linear
Clicky, Linear, Tactile
Mount style
Gasket Mount
Gasket Mount, PCB Mount
Knob
No
Yes

KeebFinder scores

How we score

ACGAM S99
Keychron Q6 Max

Performance: 66
80
Build quality: 69
91
Productivity: 80
96
Customizability: 65
100
Portability: 68
54

What they share

Connection: Bluetooth, 2.4 GHz, Wired
Hot-swappable
Max polling rate: 1,000 Hz
Case material: Aluminum
Sound dampening
Keycaps: PBT

See every spec side by side

Full specs

ACGAM S99 vs Keychron Q6 Max specs

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

15 of 27 specs differ

Spec

ACGAM S99

Keychron Q6 Max

Typing & switches

Switch options

Linear

Clicky, Linear, Tactile

Hot-swappable

Yes

Mount style

Gasket Mount

Gasket Mount, PCB Mount

Sound dampening

Yes

Screw-in stabilizers

Yes

Layout

Layout size

96%

100%

Layout standard

ANSI

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

Ergonomics

Standard

Knob

Yes

Display

None

LED

Media keys

Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz

Battery

6,000 mAhBetter

4,000 mAh

USB-C

Yes

Build & materials

Case material

Aluminum

Plate material

—

Plastic, Polycarbonate

Keycaps

PBT

Weight

1,200 g

2,184 g

Dimensions

46 x 143 x 386 mm

20 x 137 x 446 mm

Typing angle

—

5°

Backlight

RGB

RGB, south-facing

Firmware & software

QMK

Yes

VIA

Yes

N-key rollover

Yes

Mac & Windows

Yes

Extras

Released

2024

For EU buyers

ISO layouts by store

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

ACGAM S99

No ISO layout at the stores we track.

Keychron Q6 Max

Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-CH
Out of stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-FR, ISO-ES, ISO-CH
Out of stockDoes not ship to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-FR, ISO-ES
Out of stockDoes not ship to you

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.

ACGAM S992 stores