1. Introduction
The Skyloong GK75 HE is an advanced gaming keyboard designed for competitive play, featuring innovative magnetic switches and rapid trigger technology. This keyboard offers an 8KHz polling rate for ultra-fast response times, adjustable actuation points for personalized control, and durable PBT topographical keycaps. This manual provides detailed instructions for setting up, operating, customizing, and maintaining your GK75 HE keyboard to ensure optimal performance and longevity.

Figure 1: Skyloong GK75 HE Gaming Keyboard
2. Specifications
| Attribute | Value |
|---|---|
| Model | GK75 HE |
| Switch Type | Magnetic Switch |
| Connection | Wired (Type-C) |
| Backlight | RGB (South-facing) |
| N-Key Rollover | Yes |
| Rapid Trigger | Yes |
| Sensitivity | 0.01mm |
| Polling Rate | 8000Hz |
| Hot-Swap | Support |
| Adjustable Actuation Points | 0.1mm - 4mm |
| Dynamic Keystroke | 4-in-1 action keys |
| Keycup Material | PBT plastic |
| Keycup Printing | Dye-sublimation |
| Keyboard Standard | 78 Keys |
| Operation Style | Mechanical |
| Interface Type | USB |
| Certification | CE, FCC |
| Package Dimensions | 50cm x 20cm x 10cm |
| Weight | 1.16 kg |

Figure 2: Magnetic Switch Options Comparison
3. Setup
3.1 Physical Connection
The GK75 HE keyboard connects via a wired Type-C USB cable. Locate the Type-C port on the back of the keyboard and connect it to your computer's USB port. The keyboard features a three-way wiring design for flexible cable management and a hidden USB plug for stability during use.

Figure 3: Three-way Wiring and Hidden USB Plug
The keyboard also includes a two-stage tripod for adjusting the typing angle.
3.2 Driver Installation
For full customization and advanced features, it is recommended to use the Skyloong web driver software. This driver supports multiple operating systems including Windows, Mac, and Linux.
Access the web driver at: https://app.qmk.top/

Figure 4: Web Driver Interface
4. Operating Instructions
4.1 Knob Functions
The multi-function knob provides quick access to common controls:
- Standard Knob Settings:
- Turn left: Volume Down
- Turn right: Volume Up
- Press: Mute
- FN + Knob Combination (for Backlight Control):
- Turn left: Backlight brightness Down
- Turn right: Backlight brightness Up
- Press: Backlight ON/OFF

Figure 5: Volume Knob Detail
4.2 FN Key Combinations
Utilize the FN key for various shortcuts and controls:
| Key Combination | Function |
|---|---|
| FN + 6^ (hold 3s) | Switch to Windows layer (6^ key lights white when FN is pressed) |
| FN + 7& (hold 3s) | Switch to Mac layer (7& key lights white when FN is pressed) |
| FN + ↓ | Main backlight color switch (cycles through colorful, red, orange, yellow, green, cyan, blue, purple, white) |
| FN + /? | Logo backlight color switch (cycles through colorful, red, orange, yellow, green, cyan, blue, purple, white) |
| FN + 9 | Keyboard logo lights ON/OFF |
| FN + - | Backlight brightness decrease |
| FN + 0) | Keyboard lights ON/OFF |
| FN + ↑ | Backlight brightness increase |
| FN + Win | Lock/Unlock Windows function key |
| FN + =+ | Backlight button global igniting effect (static lighting effect) |
| FN + → | Backlight effect speed increase |
| FN + Backspace | Delete |
| FN + ← | Backlight effect speed decrease |
| FN + Home | End |
| FN + PgUp | Page Down |
| FN + Del | Insert |
| FN + ESC + Q (hold 3s) | Restore factory settings (clears all flash profiles and lighting effects, requires driver reconfiguration) |
F-Key Functions (FN + F1-F12)
| Key | Mac Mode Function | Windows Mode Function |
|---|---|---|
| F1 | Screen brightness - | F1 |
| F2 | Screen brightness + | F2 |
| F3 | Mac-specific function | F3 |
| F4 | QSearch | F4 |
| F5 | Lockscreen / One-key Siri | F5 |
| F6 | Screenshot | F6 |
| F7 | Previous Track | Previous Track |
| F8 | Play/Pause | Play/Pause |
| F9 | Next Track | Next Track |
| F10 | Mute | Mute |
| F11 | Volume - | Volume - |
| F12 | Volume + | Volume + |
4.3 Advanced Features
Adjustable Actuation Point
The GK75 HE allows you to fine-tune the actuation point (the distance a key needs to be pressed to register) from 0.1mm to 4mm. This customization is crucial for adapting the keyboard to different tasks:
- Short Actuation: Ideal for competitive gaming, enabling faster responses and a split-second advantage.
- Long Actuation: Better for typing accuracy and reducing accidental key presses during general use.

Figure 6: Adjustable Actuation Point Comparison
One Key, Multiple Actions (Dynamic Keystrokes)
With Dynamic Keystrokes (DKS), you can assign up to four different actions to a single key based on the depth of your press. For example, a light press could move your character, while a deeper press makes them run. Releasing the key can also trigger additional commands. This layered control system streamlines complex actions, enhancing both control and speed in gameplay.
Rapid Trigger
Rapid Trigger technology allows a key to register a new press almost immediately after being partially released, without needing to return to its full resting position. This feature is highly beneficial in scenarios requiring frequent and rapid key presses, such as rhythm games or combo chaining, ensuring the keyboard keeps pace with high input speeds.

Figure 7: Rapid Trigger Accuracy
Dynamic Rapid Trigger
This feature allows keys to activate or deactivate based on their travel distance rather than fixed points. This provides immediate key responses—press to activate, release to reset—leading to faster and more precise keystrokes. It translates to executing complex actions in real-time without delay, offering a significant advantage in fast-paced gameplay.
Analog Mode
In Analog Mode, the GK75 HE precisely detects how far each key is pressed, translating this into a range of speeds and intensities. This offers unparalleled control and responsiveness, particularly beneficial in games like racing simulations or sports titles where nuanced input is critical.
4.4 Hot-Swappable Switches
The GK75 HE supports hot-swappable magnetic switches, allowing you to easily replace switches without soldering. This feature enables customization of your typing and gaming experience to match your preferred feel and sound.

Figure 8: Hot-Swappable Switches

Figure 9: Switch Holder Structure

Figure 10: Customized Magnetic Switch Components
4.5 Product Demonstration Video
Video 1: Product demonstration showcasing typing experience and features.
5. Maintenance
5.1 Cleaning
To maintain your keyboard's performance and appearance:
- Keycaps: Gently remove keycaps using a keycap puller. Clean them with a mild soap solution and a soft cloth, then rinse and dry thoroughly before reattaching.
- Keyboard Body: Use a soft, lint-free cloth dampened with a small amount of isopropyl alcohol to wipe down the keyboard body. Avoid excessive moisture.
- Between Keys: Use compressed air to remove dust and debris from between the keys. A small brush can also be used for stubborn particles.
5.2 Storage
When not in use, store the keyboard in a dry, cool place away from direct sunlight and extreme temperatures. Keep it covered to prevent dust accumulation.
6. Troubleshooting
If you encounter issues with your GK75 HE keyboard, try the following steps:
- Keyboard Not Responding:
- Ensure the USB-C cable is securely connected to both the keyboard and your computer.
- Try connecting the keyboard to a different USB port on your computer.
- Test the keyboard on another computer to rule out a system-specific issue.
- Restart your computer.
- Keys Not Registering or Double-Typing:
- This could be related to the actuation point settings. Adjust the actuation point using the web driver software.
- Ensure the switches are properly seated in their sockets. If using hot-swappable switches, gently remove and reinsert the affected switch.
- Clean any debris around the affected switch.
- Backlight Issues:
- Check FN key combinations for backlight control (brightness, ON/OFF, color cycling).
- Ensure the keyboard lights are not turned off (FN + 0)).
- If using the web driver, verify backlight settings there.
- Software/Driver Issues:
- Ensure you are using the latest version of the web driver.
- Try reinstalling the web driver.
- If issues persist, perform a factory reset (FN + ESC + Q for 3 seconds) and reconfigure settings via the driver.
7. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official Skyloong website or contact the retailer where you purchased the product. Keep your proof of purchase for warranty claims.