
Click the coupon code for a discount. Features and specs may vary by model version.
The price history chart tracks the lowest price over time across all stores, excluding Amazon (shipping costs not included).
| Sikakeyb Castle CK75 | Lofree Foundation | Jamesdonkey R4 |
70 Overall/ Value 69.9Build Quality 61.1Customizability 57.3Performance 68.3Productivity 77.0Portability 82.9![]() | 62 Overall/ Value 62.4Build Quality 66.5Customizability 79.2Performance 54.1Productivity 63.1Portability 76.9![]() | |
0.0 stars (0 reviews) | 0.0 stars (0 reviews) | 0.0 stars (0 reviews) |
|
|
|
Scores
| Scores
| Scores
|
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 |
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.