SkyloongReleased 2022

GK21S Numpad

75/100
Very good
Overall score · how we rate
Numpad ANSIHot-swappableHall-effectQMK / VIARGB backlightWireless
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Why we rate it

  • Class-leading portability (89/100)
  • Class-leading customisability (81/100)
  • Hot-swappable switches
  • First-class QMK / VIA firmware
  • Performance is the weak point (59/100)
Score profile

Where the GK21S Numpad wins and loses

Six weighted axes · the shape tells the story
BuildCustom.Perform.Productiv.Portab.Overall748159808975
Build quality
74
Customisability
81
Performance
59
Productivity
80
Portability
89
Overall
75
Full specification

Specifications

Grouped · supported features marked in blue

Layout

Layout sizeNumpad
StandardANSI
ProfileNormal
ErgonomicsNormal
Volume knobYes
OLED / LCD screenYes

Switches & feel

Hot-swappableYes
Screw-in stabilisersYes
Sound dampeningYes
Hall-effect / magneticYes
Rapid triggerYes

Connectivity & firmware

ConnectionWireless + wired
USB-CYes
Battery750 mAh
N-key rolloverYes
QMKYes
VIAYes
VIALYes
Mac & WindowsYes
Multi-media keysYes

Build

Case materialAluminum · Plastic
BacklightRGB
ColourwaysYes
Weight400 g

More specs

Passthrough UsbYes
Head to head

GK21S Numpad vs YUNZII YUNZII B75 PRO Wireless Mechanical Keyboard

Highlighted cell = better in that row
BuildCustom.Perform.Productiv.Portab.Overall
GK21S NumpadYUNZII B75 PRO Wireless Mechanical Keyboard
 SkyloongGK21S NumpadThis pageYUNZIIYUNZII B75 PRO Wireless Mechanical Keyboard
Overall score75 /10075 /100
Build quality74 /100Better61 /100
Performance59 /10075 /100Better
ConnectionWireless + wiredWireless + wired
Polling rate4,000 Hz
Mount typeGasket MountBetter
Case materialAluminum · PlasticBetterPlastic
Hot-swappableYesYes
QMK / VIAYesYes