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SPHINX K503 (French Layout Only)

Redragon SPHINX K503

The Redragon SPHINX K503 French Only is a membrane keyboard designed for users who want a mechanical-like typing feel without the cost of true mechanical switches. It suits gamers and office workers seeking quiet, responsive keys with customizable RGB lighting and ergonomic comfort. This keyboard supports French layout users and is compatible with various Windows versions.</p... Read more
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Redragon SPHINX K503

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SPHINX K503 (French Layout Only)

Redragon
Redragon
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$30
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Compare Redragon SPHINX K503 vs Keychron B5 Pro vs FUDE EK8870 Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!
Redragon SPHINX K503Keychron B5 ProFUDE EK8870
SPHINX K503 (French Layout Only)
Keychron B5 Pro Ultra-Slim Wireless Keyboard
73
[In Stock] EK8870 100% Full Size Wireless Computer Keyboard & Mouse Combo
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  • Built with the ISO-FR, ISO layout standard
  • Features N-key rollover
  • Supports Wired, Wired only connectivity
  • Weighs about 1000 g
  • Sized at 440 x 180 x 40 mm
  • Offers Yes, Rgb RGB lighting
  • Has Linear, Tactile, Clicky switch options
  • Connects via USB-C
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 1200 mAh battery
  • Weighs about 623 g
  • Sized at 10 x 438 x 121 mm
  • Has Magnetic switch options
  • Utilizes Hall effect sensors
  • Supports QMK firmware
  • Supports VIA configuration
  • Has built-in sound dampening
  • Supports 2.4 GHz, Wireless connectivity
  • Sized at 39 x 443 x 140 mm
Scores
  • Performance: 75.7
  • Build Quality: 43.3
  • Productivity: 50.6
  • Customizability: 47.5
  • Portability: 40.6
Scores
  • Performance: 50.5
  • Build Quality: 44.2
  • Productivity: 70.9
  • Customizability: 49.5
  • Portability: 51.7
Scores
  • Performance: 56.2
  • Build Quality: 72.8
  • Productivity: 77
  • Customizability: 76.3
  • Portability: 49.3
Name
Redragon SPHINX K503
Name
Keychron B5 Pro
Name
FUDE EK8870
Release year
2025
Release year
2025
Release year
2025
Switch Options
-
Switch Options
Linear, Tactile, Clicky
Switch Options
Magnetic
Profile
Normal Profile
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Hot Swappable
 
Layout Size
100%
Layout Size
100%
Layout Size
100%
Layout Standard
ISO-FR, ISO
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
USB passthrough
 
Connection
Wired, Wired only
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
2.4 GHz, Wireless
Polling Rate
-
Polling Rate
1000 Hz
Polling Rate
-
Battery capacity
-
Battery capacity
1200 mAh
Battery capacity
-
Hall Effect Support
 
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
-
Mount Style
-
Mount Style
-
Screw in Stabilizers
 
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb
Backlight
 
Backlight
 
Case Colors
Case Colors
Case Colors
Case Material
-
Case Material
ABS
Case Material
ABS
Keycaps Material
-
Keycaps Material
ABS
Keycaps Material
ABS
Dimensions
440 x 180 x 40 mm
Dimensions
10 x 438 x 121 mm
Dimensions
39 x 443 x 140 mm
Weight
1000g
Weight
623g
Weight
-
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Product Description

The Redragon SPHINX K503 French Only is a membrane keyboard designed for users who want a mechanical-like typing feel without the cost of true mechanical switches. It suits gamers and office workers seeking quiet, responsive keys with customizable RGB lighting and ergonomic comfort. This keyboard supports French layout users and is compatible with various Windows versions.

Key Features

  • Membrane keys with mechanical feel provide a balance between quiet typing and tactile feedback, reducing noise while maintaining responsiveness.
  • RGB backlighting with 6 customizable modes allows users to personalize lighting effects for different environments or moods.
  • Anti-ghosting with 25-key rollover ensures accurate input during fast or complex key combinations, useful for gaming and productivity.
  • Dedicated multimedia keys and additional FN+ shortcuts offer quick access to media controls, enhancing convenience during work or entertainment.

Typing Experience and Ergonomics

  • Integrated wrist rest supports hand positioning, helping reduce fatigue during extended typing or gaming sessions.
  • Keys are designed to be quiet and tactile, making the keyboard suitable for shared or quiet environments.

Build and Connectivity

  • USB connection with gold-plated connector improves corrosion resistance and maintains stable data transmission over time.
  • Durable construction supports long-term use, though specific materials and mounting style are not detailed.

Compatibility

  • Supports French layout exclusively, which may limit use for those needing other language layouts or full international compatibility.
  • Compatible with Windows XP through Windows 10, covering a wide range of PC systems without additional drivers.

Trade-offs

  • Membrane switches offer less precise feedback and shorter lifespan compared to mechanical switches, which may affect heavy typists or gamers seeking high durability.
  • Limited to wired USB connectivity, so no wireless option is available.
  • RGB lighting customization is limited to preset modes without software-based programming or per-key lighting.

Frequently Asked Questions (FAQ)

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