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Head to head · Prices checked Nov 11, 2026

Gamakay TK75HE V2 vs Redragon PENUMBRA K687

Get the Gamakay TK75HE V2 for hall effect and rapid trigger.

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Quick verdict

Which one should you get?

Get the

Gamakay TK75HE V2

Hall effect

Build quality in the bottom 45% of 75% boards under $100.

Rules this board out

  • Magnetic switches only. Standard MX switches will not fit.

Get the

Redragon PENUMBRA K687

Build quality in the top 35% of 75% boards under $100.

Rules this board out

  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

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.

Gamakay TK75HE V2

Redragon PENUMBRA K687

  • Hall effect (magnetic)

    Yes

    No

    Adjustable actuation helps in games and not in normal typing

  • Rapid trigger

    Yes

    No

    Faster resets help in games and not in normal typing

  • Connection

    Wired, Wireless

    Wired

    Wireless for several devices and wired for lower latency

  • Case material

    ABS

    Aluminum

  • Switch options

    Magnetic

    Linear

KeebFinder scores

How we score
  • Gamakay TK75HE V2
  • Redragon PENUMBRA K687
Performance
99
79
Build quality
62
73
Productivity
82
71
Customizability
73
61
Portability
79
60

What they share

  • Layout size: 75%
  • Hot-swappable
  • Knob
  • Sound dampening
See every spec side by side

Full specs

Gamakay TK75HE V2 vs Redragon PENUMBRA K687 specs

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

11 of 24 specs differ

Gamakay TK75HE V2

Redragon PENUMBRA K687

Typing & switches

Switch options

Magnetic
Linear

Hall effect (magnetic)

Yes
No

Rapid trigger

Yes
No

Hot-swappable

Yes
Yes

Mount style

Top Mount
Gasket Mount

Sound dampening

Yes
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI, ISO, ISO-DE, ISO-UK
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

TFT
None

Connectivity & battery

Connection

Wired, Wireless
Wired

Max polling rate

8,000 Hz
—

Battery

4,000 mAh
Wired only

USB-C

Yes
Yes

Build & materials

Case material

ABS
Aluminum

Plate material

Aluminum
—

Keycaps

PBT
—

Weight

840 g
1,500 g

Dimensions

20 x 325 x 136 mm
43 x 133 x 43 mm

Backlight

RGB
RGB

Firmware & software

N-key rollover

Yes
Yes

Mac & Windows

Yes
No

Extras

Released

2025
2025

For EU buyers

ISO layouts by store

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

Gamakay TK75HE V2

  • GamaKay

    ISO-DE, ISO-UK

    In stockShips to you

Redragon PENUMBRA K687

No ISO layout at the stores we track.

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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