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Head to head · Prices checked Oct 31, 2026

Epomaker EK21 vs Royal Kludge RK920

Get the Epomaker EK21 for knob.

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EPOMAKER EK21

4.5 (34)

$33at Epomaker

90-day low

Quick verdict

Which one should you get?

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.

Get the

Royal Kludge RK920

Build quality in the bottom 25% of 100% boards under $100.

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.

Epomaker EK21

Royal Kludge RK920

  • Layout size

    Numpad

    100%

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wired

    Wireless for several devices and wired for lower latency

  • Switch options

    Linear

    Clicky, Linear, Silent, Tactile

  • Knob

    Yes

    No

  • Weight

    200 g

    840 g

    Heavier boards stay planted and lighter ones travel

KeebFinder scores

How we score
  • Epomaker EK21
  • Royal Kludge RK920
Performance
78
74
Build quality
76
47
Productivity
87
56
Customizability
82
66
Portability
88
43

What they share

  • Hot-swappable
  • Keycaps: PBT
See every spec side by side

Full specs

Epomaker EK21 vs Royal Kludge RK920 specs

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

11 of 24 specs differ

Epomaker EK21

Royal Kludge RK920

Typing & switches

Switch options

Linear
Clicky, Linear, Silent, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
—

Sound dampening

Yes
No

Layout

Layout size

Numpad
100%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

Media keys

No
Yes

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wired

Max polling rate

1,000 Hz
—

Battery

1,000 mAh
Wired only

USB-C

Yes
No

Build & materials

Case material

ABS
—

Plate material

Polycarbonate
—

Keycaps

PBT
PBT

Weight

200 g
840 g

Dimensions

29 x 138 x 93 mm
434 x 193 x 36 mm

Backlight

RGB
RGB

Firmware & software

VIA

Yes
No

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2025
2021

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

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Lowest price across stores, Amazon excluded.

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