Compare Leopold FC660C vs Sikakeyb Castle HM66 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Leopold FC660C and Sikakeyb Castle HM66 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.

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Main differences	Has Clicky, Silent switch options Provides dedicated media keys Features N-key rollover Uses a Plate Mount mounting style Offers No RGB lighting	Has Magnetic switch options Utilizes Hall effect sensors Enables rapid trigger functionality Has built-in sound dampening Runs at a 8000 Hz polling rate Weighs about 630 g Sized at 37 x 103 x 294 mm Made with a Aluminum case Offers Yes, Rgb RGB lighting
Score	Scores Performance: 57.8 Build Quality: 45.3 Productivity: 43.4 Customizability: 43.6 Portability: 64	Scores Performance: 85.7 Build Quality: 43.2 Productivity: 51.2 Customizability: 46.8 Portability: 63.4
Name	Name Leopold FC660C	Name Sikakeyb Castle HM66
Release year	Release year 2024	Release year 2024
Switch Options	Switch Options Clicky, Silent	Switch Options Magnetic
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 65%	Layout Size 65%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	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	Connection Wired, Wired only	Connection Wired, Wired only
Polling Rate	Polling Rate -	Polling Rate 8000 Hz
Battery capacity	Battery capacity -	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 Plate Mount	Mount Style -
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight	Backlight Rgb
Case Colors	Case Colors	Case Colors
Case Material	Case Material -	Case Material Aluminum
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT
Dimensions	Dimensions -	Dimensions 37 x 103 x 294 mm
Weight	Weight -	Weight 630g