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Head to head · Prices checked Oct 21, 2026

Redragon PENUMBRA K687 vs Ducky Tinker 75 ProjectD

Get the Redragon PENUMBRA K687 for knob. Get the Ducky Tinker 75 ProjectD for qmk.

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.

Redragon PENUMBRA K687

Ducky Tinker 75 ProjectD

  • Case material

    Aluminum

    Plastic

  • Switch options

    Linear

    Clicky, Linear, Tactile

  • Mount style

    Gasket Mount

    Plate Mount

  • Knob

    Yes

    No

  • QMK

    No

    Yes

KeebFinder scores

How we score
  • Redragon PENUMBRA K687
  • Ducky Tinker 75 ProjectD
Performance
79
82
Build quality
73
73
Productivity
71
89
Customizability
61
89
Portability
60
63

What they share

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

Full specs

Redragon PENUMBRA K687 vs Ducky Tinker 75 ProjectD specs

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

10 of 22 specs differ

Redragon PENUMBRA K687

Ducky Tinker 75 ProjectD

Typing & switches

Switch options

Linear
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Plate Mount

Sound dampening

Yes
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

Media keys

No
Yes

Connectivity & battery

Connection

Wired
Wired

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
Plastic

Plate material

—
FR4

Weight

1,500 g
—

Dimensions

43 x 133 x 43 mm
—

Backlight

RGB
RGB, south-facing

Firmware & software

QMK

No
Yes

VIA

No
Yes

N-key rollover

Yes
Yes

Mac & Windows

No
Yes

Extras

Released

2025
2024

Where to buy

Compare prices

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

Lowest price across stores, Amazon excluded.

  • RedragonCN

    In stock
    $69Visit
  • AmazonGlobal

    Check price
    ~$69Visit
  • MKUS

    In stock
    $74Visit
  • AmazonGlobal

    Check price
    ~$74Visit

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.

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