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Head to head · Prices checked Oct 21, 2026

Ducky Keyboard vs Redragon SPHINX K503

Get the Redragon SPHINX K503 for n-key rollover.

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.

Ducky Keyboard

Redragon SPHINX K503

  • Layout standard

    ANSI

    ISO, ISO-FR

  • Backlight

    None

    RGB

  • N-key rollover

    No

    Yes

  • Released

    2026

    2025

KeebFinder scores

How we score
  • Ducky Keyboard
  • Redragon SPHINX K503
Performance
43
76
Build quality
42
43
Productivity
58
50
Customizability
58
48
Portability
40
41
See every spec side by side

Full specs

Ducky Keyboard vs Redragon SPHINX K503 specs

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

4 of 10 specs differ

Ducky Keyboard

Redragon SPHINX K503

Layout

Layout size

—
100%

Layout standard

ANSI
ISO, ISO-FR

Ergonomics

Standard
Standard

Display

None
None

Connectivity & battery

Connection

—
Wired

Build & materials

Weight

—
1,000 g

Dimensions

—
440 x 180 x 40 mm

Backlight

None
RGB

Firmware & software

N-key rollover

No
Yes

Extras

Released

2026
2025

Where to buy

Compare prices

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

  • Input GearDE

    In stock
    $19Visit
  • AmazonGlobal

    Check price
    ~$19Visit
  • RedragonCN

    In stock
    $30Visit
  • AmazonGlobal

    Check price
    ~$30Visit

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