Head to head · Prices checked Oct 30, 2026

Ajazz AC100 vs Epomaker EK21

Get the Ajazz AC100 for the 8,000 mAh battery. Get the Epomaker EK21 for knob.

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Battery

Ajazz AC100

No reviews

from$89at Mechkeys

Compare 3 stores

Knob

Epomaker EK21

4.5 · 34 reviews

from$39at Epomaker

Compare 2 stores

Quick verdict

Which one should you get?

Get the

Ajazz AC100

Battery

Build quality in the bottom 45% of 96% boards under $100.

Rules this board out

South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
Compact full-size layout. The numpad is present, the gaps of a full-size board are not.

$89 at Mechkeys

Get the

Epomaker EK21

Knob

Build quality in the top 25% of Numpad boards under $50.

Rules this board out

Numpad only. This is not a full keyboard.

$39 at Epomaker

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 AC100

Epomaker EK21

Layout size
96%
Numpad
Battery
8,000 mAh
1,000 mAh
A larger battery means fewer cables during the day
Case material
Aluminum
ABS
Knob
No
Yes
Display
TFT
None
A case display rather than a typing feature

KeebFinder scores

How we score

Ajazz AC100
Epomaker EK21

Performance: 58
78
Build quality: 59
76
Productivity: 65
87
Customizability: 65
82
Portability: 62
88

What they share

Connection: Bluetooth, 2.4 GHz, Wired
Hot-swappable
Switch options: Linear
Mount style: Gasket Mount
Keycaps: PBT

See every spec side by side

Full specs

Ajazz AC100 vs Epomaker EK21 specs

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

12 of 23 specs differ

Spec

Ajazz AC100

Epomaker EK21

Typing & switches

Switch options

Linear

Hot-swappable

Yes

Mount style

Gasket Mount

Sound dampening

Yes

Layout

Layout size

96%

Numpad

Layout standard

ANSI

Ergonomics

Standard

Knob

Yes

Display

TFT

None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired

Max polling rate

—

1,000 Hz

Battery

8,000 mAhBetter

1,000 mAh

USB-C

Yes

Build & materials

Case material

Aluminum

ABS

Plate material

FR4, Plastic

Polycarbonate

Keycaps

PBT

Weight

2,100 g

200 g

Dimensions

20 x 145 x 410 mm

29 x 138 x 93 mm

Backlight

RGB, south-facing

RGB

Firmware & software

VIA

Yes

N-key rollover

Yes

Mac & Windows

Yes

Extras

Released

2024

2025

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 AC1003 stores