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SIKAKEYB Castle CK75 US 83Key Magnetic Switch Mechanical Keyboard

Sikakeyb Castle CK75

The Sikakeyb Castle CK75 is a compact 83-key tenkeyless mechanical keyboard designed for e-sports players and users who want precise, adjustable key response and a comfortable typing experience. It features new-generation Gateron Jade Magnetic switches with Hall Effect triggering, allowing fine-tuning of the trigger point for fast and accurate input. This keyboard suits gamers and typists who prioritize responsiveness and customizable feedback in a compact layout.</p... Read more
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SIKAKEYB Castle CK75 Magnetic Switch Mechanical Keyboard

Sikakeyb Castle CK75 - Yellow / Magnetic Jade Switch
Mechkeys
Ships to US
$199
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Compare Sikakeyb Castle CK75 vs Lofree Foundation vs Jamesdonkey R4 Specification

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Sikakeyb Castle CK75Lofree FoundationJamesdonkey R4
SIKAKEYB Castle CK75 US 83Key Magnetic Switch Mechanical Keyboard
70
Foundation Mechanical Keyboard
62
JAMESDONKEY R4 Gasket QMK Wireless Mechanical Keyboard
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0.0 (0)
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  • Has Magnetic switch options
  • Utilizes Hall effect sensors
  • Enables rapid trigger functionality
  • Supports Wired, Wired only, connectivity
  • Runs at a 8000 Hz polling rate
  • Weighs about 805 g
  • Sized at 29 x 129 x 316 mm
  • Offers Yes, Rgb RGB lighting
  • Released in 2023
  • Compatible with both Mac and Windows
  • Features N-key rollover
  • Runs at a 1000 Hz polling rate
  • Weighs about 972 g
  • Sized at 44 x 325 x 161 mm
  • Features ABS, PC keycaps
  • Offers Yes, White RGB lighting
  • Comes with a knob
  • Provides dedicated media keys
  • Supports QMK firmware
  • Weighs about 1900 g
  • Sized at 45 x 150 x 329 mm
  • Made with a Aluminum case
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Scores
  • Performance: 87.9
  • Build Quality: 42.3
  • Productivity: 56.3
  • Customizability: 45.8
  • Portability: 60.7
Scores
  • Performance: 68.3
  • Build Quality: 61.1
  • Productivity: 77
  • Customizability: 57.3
  • Portability: 82.9
Scores
  • Performance: 54.1
  • Build Quality: 66.5
  • Productivity: 63.1
  • Customizability: 79.2
  • Portability: 76.9
Name
Sikakeyb Castle CK75
Name
Lofree Foundation
Name
Jamesdonkey R4
Release year
2024
Release year
2023
Release year
2024
Switch Options
Magnetic
Switch Options
-
Switch Options
-
Profile
Normal Profile
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Size
75%
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
Wired, Wired only,
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
8000 Hz
Polling Rate
1000 Hz
Polling Rate
-
Battery capacity
-
Battery capacity
4000 mAh
Battery capacity
4000 mAh
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
Gasket Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb
Backlight
 
White
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Colors
Case Material
ABS
Case Material
ABS
Case Material
Aluminum
Keycaps Material
PBT
Keycaps Material
ABS, PC
Keycaps Material
PBT
Dimensions
29 x 129 x 316 mm
Dimensions
44 x 325 x 161 mm
Dimensions
45 x 150 x 329 mm
Weight
805g
Weight
972g
Weight
1900g
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Product Description

The Sikakeyb Castle CK75 is a compact 83-key tenkeyless mechanical keyboard designed for e-sports players and users who want precise, adjustable key response and a comfortable typing experience. It features new-generation Gateron Jade Magnetic switches with Hall Effect triggering, allowing fine-tuning of the trigger point for fast and accurate input. This keyboard suits gamers and typists who prioritize responsiveness and customizable feedback in a compact layout.

Key Features

  • Gateron Jade Magnetic switches with Hall Effect technology provide smooth keystrokes and allow trigger point adjustment from 0.01mm to 4.0mm in 0.01mm increments, enabling tailored key activation sensitivity.
  • Dynamic RGB backlighting offers customizable lighting effects to enhance visibility and personal style.
  • Supports standard key remapping through HM Solution Driver software, which also manages switch trigger settings and lighting customization.
  • Native 8000Hz polling rate supports rapid input reporting, beneficial for competitive gaming.

Build Quality and Typing Experience

  • Gasket-mounted internal structure reduces typing noise and vibration by isolating the plate from the case, improving acoustic comfort.
  • Multiple layers of PORON sandwich cotton and silicone padding absorb keystroke impact and minimize resonance, resulting in softer keypress sounds and a cushioned feel.
  • High-quality PBT dye-sublimated keycaps resist shine and provide durable legends.

Compatibility and Software

  • 83-key tenkeyless layout fits compact desk setups while retaining essential keys.
  • Compatible with HM Solution Driver software for Windows, enabling full customization of key functions, lighting, and switch trigger points.
  • Unknown compatibility with other operating systems.

Trade-offs

  • Limited to wired connectivity; no wireless option is available.
  • Compact 83-key layout may lack dedicated function keys or numpad preferred by some users.
  • Adjusting trigger points requires software use, which may add complexity for users seeking plug-and-play simplicity.

Frequently Asked Questions (FAQ)

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