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CoolKiller ROCOCO Hot-swappable Wireless Number Pad

Coolkiller ROCOCO Numpad

The Coolkiller ROCOCO Number Pad is a compact mechanical keypad designed for users who need a versatile numeric input device with multiple connectivity options. It suits professionals who want a smooth, quieter typing experience and hobbyists who frequently customize switches without soldering. Its wireless and wired modes offer flexibility for different setups.</p... Read more
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Compare Coolkiller ROCOCO Numpad vs MMD KM21 Ultra vs Realforce Topre RT1 Numpad Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!
Coolkiller ROCOCO NumpadMMD KM21 UltraRealforce Topre RT1 Numpad
62
CoolKiller ROCOCO Hot-swappable Wireless Number Pad
85
MMD KM21 Ultra - QMK/VIA Wireless Aluminium Macropad Numpad
Topre Realforce RT1 Numpad Keyboard
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  • Released in 2024
  • Uses a Gasket Mount mounting style
  • Made with a ABS case
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
  • Released in 2026
  • Comes with a knob
  • Connects via USB-C
  • Supports QMK firmware
  • Supports VIA configuration
  • Uses a Top Mount mounting style
  • Equipped with a 980 mAh battery
  • Made with a Aluminum case
  • Offers Yes, Rgb RGB lighting
  • Released in 2025
  • Features N-key rollover
  • Supports Wired, Wired only connectivity
  • Made with a Plastic case
  • Features PBT keycaps
  • Offers No RGB lighting
Scores
  • Performance: 56.9
  • Build Quality: 61.9
  • Productivity: 60.8
  • Customizability: 63.5
  • Portability: 83.4
Scores
  • Performance: 66.7
  • Build Quality: 81.6
  • Productivity: 89.3
  • Customizability: 89.7
  • Portability: 85.9
Scores
  • Performance: 52
  • Build Quality: 43.2
  • Productivity: 45.6
  • Customizability: 42.8
  • Portability: 66.8
Name
Coolkiller ROCOCO Numpad
Name
MMD KM21 Ultra
Name
Realforce Topre RT1 Numpad
Release year
2024
Release year
2026
Release year
2025
Switch Options
-
Switch Options
-
Switch Options
-
Profile
Normal Profile
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Hot Swappable
 
Layout Size
Numpad
Layout Size
Numpad
Layout Size
Numpad
Layout Standard
ANSI
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
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Wired, Wired only
Polling Rate
-
Polling Rate
-
Polling Rate
-
Battery capacity
-
Battery capacity
980 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
Gasket Mount
Mount Style
Top Mount
Mount Style
-
Screw in Stabilizers
 
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, South-face
Backlight
 
Rgb
Backlight
 
Case Colors
Case Colors
Case Colors
Case Material
ABS
Case Material
Aluminum
Case Material
Plastic
Keycaps Material
-
Keycaps Material
-
Keycaps Material
PBT
Dimensions
-
Dimensions
-
Dimensions
-
Weight
-
Weight
-
Weight
-
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Product Description

The Coolkiller ROCOCO Number Pad is a compact mechanical keypad designed for users who need a versatile numeric input device with multiple connectivity options. It suits professionals who want a smooth, quieter typing experience and hobbyists who frequently customize switches without soldering. Its wireless and wired modes offer flexibility for different setups.

Key Features

  • Hot-swappable switch sockets support both 3-pin and 5-pin mechanical switches, allowing easy customization without soldering.
  • Triple connectivity modes include wired USB-C, Bluetooth 5.1, and 2.4GHz wireless, providing options for stable or wireless use depending on the environment.
  • South-facing LEDs improve RGB lighting visibility and reduce interference with keycap legends, enhancing backlight clarity.
  • Includes a large battery and default RGB effects, with software available for further lighting customization.

Build Quality

  • Gasket-mounted design with silicone gaskets and sound-absorbing pads reduces typing noise and softens keypress impact, resulting in a quieter, more comfortable feel.
  • Case made from ABS plastic, which balances durability and weight but may be less premium-feeling compared to metal cases.
  • Full acrylic construction contributes to a solid, stable typing surface.

Typing Experience

  • Equipped with linear CoolKiller COCO switches featuring a 25gf operating force and 3.3mm total travel, suitable for users preferring smooth keypresses without tactile bumps.
  • Gasket mounting and internal foam pads absorb vibrations and reduce harsh sounds, making it quieter than typical mechanical keypads.

Connectivity

  • Wired USB-C connection offers low-latency and reliable performance for desktop use.
  • Bluetooth 5.1 mode supports wireless use with compatible devices, ideal for reducing cable clutter.
  • 2.4GHz wireless mode uses a dedicated receiver for potentially more stable connection than Bluetooth, useful in environments with wireless interference.

Trade-offs

  • ABS plastic case may feel less sturdy compared to metal alternatives.
  • Battery life details are unknown, which may affect planning for wireless use.
  • Limited to number pad layout, so less suitable if full keyboard functionality is needed.

Frequently Asked Questions (FAQ)

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