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Compare zFrontier HX 40 vs PromoType Key Boy Advance 50 KBA50 Differences Side by Side

Explore the comprehensive side-by-side comparison of the zFrontier HX 40 and PromoType Key Boy Advance 50 KBA50 and view their biggest differences. The detailed comparison table allows you to see all the essential features, specifications, and benefits of each keyboard at a glance. Whether you're looking for performance, value, or specific functionalities, this comparison tool helps you make an informed decision.

[In Stock] HX-40 40% MX/EC Keyboard kit
67
[Pre Order] PromoType Key Boy Advance 50 KBA50 Keyboard Kit

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  • Available in a 40% layout
  • Supports Wired, Wired only connectivity
  • Available in a 50% layout
  • Connects via USB-C
  • Supports VIAL configuration
  • Uses a Top Mount mounting style
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Equipped with a 1000 mAh battery
  • Weighs about 1400 g
  • Sized at 33 x 251 x 119 mm
  • Made with a Aluminum, Polycarbonate case
Scores
  • Performance: 46.6
  • Build Quality: 48.9
  • Productivity: 46.9
  • Customizability: 56.9
  • Portability: 66.3
Scores
  • Performance: 52.1
  • Build Quality: 69.7
  • Productivity: 58.5
  • Customizability: 69.3
  • Portability: 85.7
Name
zFrontier HX 40
Name
PromoType Key Boy Advance 50 KBA50
Release year
2026
Release year
2026
Switch Options
-
Switch Options
-
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
40%
Layout Size
50%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Split Spacebar
Layout Ergonomics
Split Spacebar
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Wired, Wired only
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
-
Polling Rate
-
Battery capacity
-
Battery capacity
1000 mAh
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
-
Mount Style
Top Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Backlight
 
Case Colors
Case Colors
Case Material
-
Case Material
Aluminum, Polycarbonate
Keycaps Material
-
Keycaps Material
-
Dimensions
-
Dimensions
33 x 251 x 119 mm
Weight
-
Weight
1400g
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