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Head to head · Prices checked Oct 31, 2026

Epomaker EK21 vs Hack70Numpad or Ortholinear 65%

Choose the EK21 for a compact numeric pad and aluminum knob, or the Hack70 for a full 65% ortholinear typing layout.

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EPOMAKER EK21

Knob

Epomaker EK21

4.5 · 34 reviews

from$33at Epomaker

90-day low

EPOMAKER HACK70

Battery

Epomaker Hack70

5.0 · 3 reviews

from$76at 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.

If you want

  • Compact numpad measuring 29 x 138 x 93 mm and weighing 200 g.
  • Aluminum alloy knob offers tactile volume control, and Epomaker describes VIA customization for macros and media control.
  • Hot-swappable with 3-pin and 5-pin mechanical switch compatibility.

Rules this board out

  • Numpad only. This is not a full keyboard.

Get the

Epomaker Hack70

Battery

Build quality in the top 40% of 65% boards under $100.

If you want

  • 70-key, 65% ortholinear layout provides a compact main typing keyboard.
  • Five-layer dampening includes sandwich latex, PE film, IXPE, EPDM foam, and bottom silicone.
  • Hot-swappable with other 5-pin mechanical switches.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • 65% layout. No function row and no numpad.

Bottom line

Choose the EK21 if you already have a main keyboard and want a light, compact numpad with a customizable aluminum knob. Choose the Hack70 if you need a complete typing board and prefer a 70-key ortholinear layout with five-layer dampening. The key decision is whether you need a dedicated number pad or a compact main keyboard.

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

Epomaker Hack70

  • Layout size

    Numpad

    65%

  • Battery

    1,000 mAh

    3,000 mAh

    A larger battery means fewer cables during the day

  • Ergonomics

    Standard

    Ortholinear

  • Case material

    ABS

    ABS, Plastic

  • Knob

    Yes

    No

KeebFinder scores

How we score
  • Epomaker EK21
  • Epomaker Hack70
Performance
78
72
Build quality
76
71
Productivity
87
83
Customizability
82
73
Portability
88
88

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Max polling rate: 1,000 Hz
  • Switch options: Linear
  • Mount style: Gasket Mount
  • VIA
See every spec side by side

Best for

What will you mostly use it for?

The Hack70 is the more suitable main keyboard for gaming and programming because it has a full 65% typing layout, while the EK21 is only a numpad. Office use depends on whether numeric entry and a dedicated knob matter more than a compact ortholinear typing board. The EK21 has the travel advantage in size and weight, and offers a broader stated switch-pin range for modding. Its knob also gives it a useful edge for control-oriented content workflows.

For gaming

Pick the Epomaker Hack70

  • The Hack70 is a 70-key keyboard, while the EK21 is a numpad and is not a full keyboard.
  • Both list 1000 Hz polling and N-key rollover; the Hack70 vendor specifies 1000 Hz over wired and 2.4 GHz.

From real owners

What owners say

Ratings and quotes collected from verified store reviews, including the critical ones.

Epomaker EK21

4.5

34 owner reviews

Praise
“Great wireless connectivity, sounds and feels as good as my 200$ custom keyboard. Great buy especially with the discount, would definitely buy again.”
Jared T.Verified buyer· via Epomaker
Critique
“I have had this thing for years, I have updated to every Json file and firmware file I can find and it has NEVER worked right, Either the Json file or the firmware is jacked up and no one at Epomaker can give me any explanation. This numpad is the reason I…”
Chris· via Epomaker

Epomaker Hack70

5.0

3 owner reviews

Praise
“Este es uno de los teclados más extraños que he usado y requiere desaprender (memoria muscular) para disfrutar de el y creanme que vale la pena. Lo super recomiendo.”
Luis V.Verified buyer· via Epomaker

Full specs

Epomaker EK21 vs Hack70 specs

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

9 of 23 specs differ

Epomaker EK21

Epomaker Hack70

Typing & switches

Switch options

Linear
Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

Numpad
65%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Ortholinear

Knob

Yes
No

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz
1,000 Hz

Battery

1,000 mAh
3,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

ABS
ABS, Plastic

Plate material

Polycarbonate
Polycarbonate

Keycaps

PBT
PBT

Weight

200 g
676 g

Dimensions

29 x 138 x 93 mm
40 x 302 x 119 mm

Backlight

RGB
RGB, south-facing

Firmware & software

VIA

Yes
Yes

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2025
2026

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.

FAQ

Epomaker EK21 vs Hack70: your questions

No. The EK21 is a numpad, and its compatibility rule specifies that it is not a full keyboard. It is intended to add dedicated numeric keys rather than replace a main typing board.

No. The Hack70 has a 65% layout, and its compatibility rule specifies that it has neither a numpad nor a function row. Its 70 keys use an ortholinear grid.

The EK21 is smaller at 29 x 138 x 93 mm and weighs 200 g. The Hack70 measures 40 x 302 x 119 mm and weighs 676 g.

Both support Bluetooth, 2.4 GHz wireless, and wired USB-C connectivity. The EK21 vendor describes these as tri-mode connections, and the Hack70 vendor lists the same connection options.

The Hack70 has a 3000mAh battery, compared with the EK21's 1000mAh battery. Battery capacity alone does not establish how long either keyboard will run between charges.

Both keyboards are hot-swappable. The EK21 supports 3-pin and 5-pin mechanical switches, while the Hack70 is specified for other 5-pin mechanical switches.

Both product listings include VIA support. Epomaker specifically describes VIA customization on the EK21 for keys, macros, and media control.

The EK21 is the purpose-built option for numeric entry because it is a dedicated numpad. The Hack70 has no numpad, according to its compatibility rule.

The Hack70 has south-facing LEDs and non-shine-through keycaps. Its compatibility rule says shine-through legends stay dark, and some sculpted keycaps can clip the LED.

The EK21 uses three dampening layers, including Poron foam and an IXPE switch pad. The Hack70 uses sandwich latex, PE sound-optimizing film, an IXPE switch pad, EPDM foam, and bottom silicone.

The EK21 has an aluminum alloy knob, which Epomaker describes for volume control and VIA customization for media control and macros. The Hack70's listed features do not include a knob.

The Hack70 is a 65% keyboard with 70 keys, so it has a main typing layout, although it lacks a function row and numpad. The EK21 is a numpad only and is not a full keyboard.

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