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Compare Velocifire stars21 Numeric Keypad vs MMD KM21 Ultra Differences Side by Side

Explore the comprehensive side-by-side comparison of the Velocifire stars21 Numeric Keypad and MMD KM21 Ultra 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.

76
[In Stock]stars21 Wireless Tri-Mode Aluminum Alloy Numeric Keypad - Image: 5
85
MMD KM21 Ultra - QMK/VIA Wireless Aluminium Macropad Numpad

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  • Uses a Gasket Mount mounting style
  • Runs at a 1000 Hz polling rate
  • Equipped with a 2000 mAh battery
  • Weighs about 460 g
  • Sized at 23 x 130 x 95 mm
  • Comes with a knob
  • Compatible with both Mac and Windows
  • Connects via USB-C
  • Has built-in sound dampening
  • Uses a Top Mount mounting style
  • Equipped with a 980 mAh battery
Scores
  • Performance: 64.3
  • Build Quality: 82.1
  • Productivity: 57.3
  • Customizability: 84.6
  • Portability: 81.9
Scores
  • Performance: 66.7
  • Build Quality: 81.6
  • Productivity: 89.3
  • Customizability: 89.7
  • Portability: 85.9
Name
Velocifire stars21 Numeric Keypad
Name
MMD KM21 Ultra
Release year
2026
Release year
2026
Switch Options
-
Switch Options
-
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
Numpad
Layout Size
Numpad
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
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
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
1000 Hz
Polling Rate
-
Battery capacity
2000 mAh
Battery capacity
980 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
Gasket Mount
Mount Style
Top Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb
Backlight
 
Rgb
Case Colors
Case Colors
Case Material
Aluminum
Case Material
Aluminum
Keycaps Material
-
Keycaps Material
-
Dimensions
23 x 130 x 95 mm
Dimensions
-
Weight
460g
Weight
-
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