EPOMAKER Hi75
EPOMAKER x LEOBOG Hi75 Wired Mechanical Keyboard
Instruction Manual
Introduction
The EPOMAKER x LEOBOG Hi75 is a high-performance wired mechanical keyboard designed for both work and gaming. It features a durable aluminum alloy build, a gasket-mounted structure for enhanced typing feel, and a versatile mode-switching knob. This manual will guide you through the features and functionalities of your new keyboard.

Figure 1: EPOMAKER x LEOBOG Hi75 Wired Mechanical Keyboard (White Green colorway).
Package Contents
Before proceeding with the setup, please ensure all items are present in the package:
- EPOMAKER x LEOBOG Hi75 Mechanical Keyboard
- USB-C Cable
- Keycap Puller
- User Manual (this document)

Figure 2: Included accessories with the EPOMAKER x LEOBOG Hi75 keyboard, including the keyboard itself, USB cable, and keycap puller.
Setup
Follow these steps to set up your EPOMAKER x LEOBOG Hi75 keyboard:
- Unpack the Keyboard: Carefully remove the keyboard and all accessories from the packaging.
- Connect the USB Cable: Locate the USB-C port on the keyboard. Connect the provided USB-C cable to the keyboard and the other end to an available USB port on your computer. The keyboard is designed for seamless plug-and-play functionality.
- Initial Power On: The keyboard will illuminate upon successful connection.
- Operating System Compatibility: The Hi75 is compatible with PC, Mac, Android, and iOS devices. Use the following shortcuts to switch between operating system modes if needed:
- FN + Q = Android
- FN + W = WIN (Windows)
- FN + E = MAC (macOS)
- FN + R = iOS

Figure 3: The USB-C port for connecting the keyboard to your device.

Figure 4: The keyboard supports multiple operating systems including Mac and Windows.
Operating Instructions
The EPOMAKER x LEOBOG Hi75 offers several features to enhance your user experience:
Mode-Switching Knob
The innovative knob on the keyboard allows for seamless transitions between work and gaming modes, and provides refined control over volume and lighting.
- Work Mode: Provides a constant RGB glow for a focused environment.
- Gaming Mode: Offers dynamic RGB flashing for an immersive gaming experience.
- Volume Control: Rotate the knob to adjust audio volume.
- Lighting Control: Press the knob to cycle through lighting effects or adjust brightness.

Figure 5: The multi-functional mode-switching knob.
Key Functions and Layout
The Hi75 features a 75% layout with 81 essential keys. It includes full key anti-ghosting (NKRO) to recognize multiple keypresses simultaneously, ensuring rapid and responsive keystroke registration.

Figure 6: The 75% compact ANSI layout of the Hi75 keyboard.

Figure 7: NKRO ensures all keypresses are registered, even when multiple keys are pressed simultaneously.
Typing Experience
The gasket-mounted design, complemented by PORON gaskets, significantly minimizes cavity sound, enhancing your typing sounds for a satisfying, low-noise experience.
Video 1: Demonstration of the creamy typing sound of the EPOMAKER x LEOBOG Hi75 Mechanical Keyboard.
Video 2: Typing sound test of the EPOMAKER x LEOBOG Hi75 Aluminum Alloy Creamy Mechanical Keyboard.
Video 3: Overview of the EPOMAKER x LEOBOG Hi75 Aluminum Alloy Wired Mechanical Keyboard.
Video 4: Features of the EPOMAKER x LEOBOG Hi75 White Wired Mechanical Keyboard.
Video 5: Detailed look at the EPOMAKER x LEOBOG Hi75 Aluminum Alloy Wired Gaming Keyboard.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your keyboard.
Cleaning
- Use a soft, dry cloth to wipe down the keyboard surface.
- For dust and debris between keycaps, use compressed air.
- Avoid using harsh chemicals or abrasive materials.
Hot-Swap Capability
The Hi75 features full key hot-swap capability, allowing you to change mechanical switches without soldering. It is compatible with most 3-pin and 5-pin switches.
- Remove Keycap: Use the included keycap puller to gently remove the desired keycap.
- Remove Switch: Use a switch puller (not included, but often comes with switches) to carefully pull the switch straight up from the PCB.
- Insert New Switch: Align the pins of the new switch with the holes on the PCB. Press down firmly until the switch clicks into place. Ensure pins are not bent.
- Replace Keycap: Place the keycap onto the new switch stem and press down gently.

Figure 8: The hot-swappable design allows for easy switch replacement and customization.
Troubleshooting
If you encounter issues with your EPOMAKER x LEOBOG Hi75 keyboard, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding | Loose USB connection, incorrect OS mode, driver issue. | Ensure USB cable is securely connected. Try a different USB port. Verify correct OS mode (FN+W for Windows, FN+E for Mac). Restart your computer. |
| Specific keys not working | Bent switch pin, faulty switch, debris under keycap. | Remove keycap and switch. Inspect switch pins for bends and straighten if necessary. Clean any debris. Replace the switch if faulty. |
| RGB lighting not working or incorrect | Software setting, knob setting. | Rotate or press the mode-switching knob to adjust lighting. Check if any software is overriding keyboard lighting settings. |
| Keys feel sticky or inconsistent | Debris, switch lubrication. | Clean under the keycap. If issue persists, consider lubricating the switch or replacing it. |
Specifications
Detailed specifications for the EPOMAKER x LEOBOG Hi75 Wired Mechanical Keyboard:
- Product Dimensions: 12.99 x 5.31 x 1.77 inches
- Item Weight: 4.42 pounds
- Item Model Number: Hi75
- Connectivity Technology: USB-C
- Number of Keys: 81
- Keyboard Backlighting: RGB
- Special Features: Wired, Ergonomic, Backlit, Customizable Display Keys, Hot-Swappable
- Material: Aluminum Alloy (case)
- Polling Rate: 1000Hz (Advanced Gaming-Grade Chip)
- Keycap Profile: PBT Keycap in Ergonomic Profile

Figure 9: Internal structure showing the gasket mount and sound-dampening layers.

Figure 10: The advanced gaming-grade chip ensures rapid and responsive performance.
Warranty and Support
For warranty information, technical support, or service inquiries regarding your EPOMAKER x LEOBOG Hi75 keyboard, please refer to the official EPOMAKER website or contact their customer support directly. Details are typically provided on the product packaging or within the manufacturer's official documentation.
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