1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your EPOMAKER x Feker Galaxy80 Wireless Mechanical Gaming Keyboard. Please read this manual thoroughly before using the product to ensure proper functionality and longevity.
2. Package Contents
Verify that all items are present in the package:
- EPOMAKER x Feker Galaxy80 Keyboard
- USB Cable
- Keycap Puller
- Switch Puller (typically included for hot-swappable keyboards)
- User Manual

Image: Contents of the EPOMAKER x Feker Galaxy80 package, including the keyboard, USB cable, keycap puller, and user manual.
3. Product Overview
The EPOMAKER x Feker Galaxy80 is a high-performance mechanical gaming keyboard designed for versatility and durability. Key features include:
- Robust Aluminum Alloy Shell: Provides durability and a stable typing experience.
- Tenkeyless (TKL) Compact Layout: Efficient design without a numeric keypad, saving desk space.
- Innovative Gasket Structure: Enhances typing comfort and sound profile.
- 5-Layered Structure for HiFi Sound: Incorporates multiple materials (PORON sandwich cotton, IXPE switch pad, PET acoustic pad, EMDP switch cotton, PET bottom pad) for optimized acoustics.
- Versatile Connectivity: Supports Bluetooth 5.0, 2.4GHz wireless, and USB-C wired connections.
- Long-Lasting 4000mAh Battery: Ensures extended wireless usage.
- Hot-Swappable PCB: Compatible with 3/5-pin mechanical switches for customization.
- South-facing LEDs & Dazzling RGB Backlight: Offers 19 lighting effects and music rhythm sync.

Image: Overview of the Galaxy80 keyboard highlighting its TKL layout, tri-mode connectivity, hot-swappable switches, RGB backlight, gasket mount, south-facing LEDs, full aluminum alloy shell, and 4000mAh battery.

Image: Detailed view of the keyboard's CNC aluminum alloy shell, emphasizing its texture and robust construction.

Image: Illustration of the double-shot PBT keycaps and their MDA profile, indicating keycap height and shape.

Image: An exploded diagram illustrating the multi-layered internal structure of the Galaxy80 keyboard, contributing to its acoustic properties and typing feel.
4. Setup and Connectivity
The Galaxy80 keyboard supports three connection modes: USB-C wired, 2.4GHz wireless, and Bluetooth 5.0.
4.1. USB-C Wired Connection
- Ensure the power switch on the keyboard is in the OFF position.
- Connect the provided USB-C cable to the keyboard's USB-C port.
- Connect the other end of the USB-C cable to an available USB port on your computer.
- The keyboard will be recognized automatically by your operating system.
4.2. 2.4GHz Wireless Connection
- Locate the 2.4GHz USB receiver, which is typically stored in a compartment on the keyboard body (often under the "shooting star" emblem).
- Plug the 2.4GHz USB receiver into an available USB port on your computer.
- Turn the power switch on the keyboard to the ON position.
- Press Fn + R to activate 2.4GHz wireless mode. The keyboard should connect automatically.
4.3. Bluetooth 5.0 Connection
- Turn the power switch on the keyboard to the ON position.
- Press and hold Fn + Q, Fn + W, or Fn + E for 3-5 seconds to enter Bluetooth pairing mode for one of the three available profiles. The indicator light for the selected profile will flash rapidly.
- On your device (PC, laptop, tablet, phone), enable Bluetooth and search for new devices.
- Select "Galaxy80" from the list of available devices to pair.
- Once paired, the indicator light will stop flashing and remain solid for a few seconds, then turn off.
- To switch between paired Bluetooth devices, press Fn + Q, Fn + W, or Fn + E briefly.

Image: The Galaxy80 keyboard demonstrating its tri-mode connectivity: Bluetooth 5.0, 2.4GHz Wireless, and USB-C Wired, compatible with PC, laptop, tablet, and phone devices.
5. Operating Instructions
5.1. Basic Functions
- Power On/Off: Use the physical switch located on the keyboard.
- Charging: Connect the USB-C cable to a power source. The keyboard features a 4000mAh battery.
5.2. RGB Backlight Control
The Galaxy80 features a full-color RGB backlight with 19 lighting effects and music rhythm synchronization.
- Toggle Backlight Effect: Press Fn + Enter
- Toggle Backlight Color: Press Fn + V
- Turn On/Off Backlight: Press Fn + T

Image: Diagram illustrating the key combinations for controlling the RGB backlight effects, color, and on/off function on the Galaxy80 keyboard.
5.3. Programmable Software
The Galaxy80 supports custom software for key remapping, macro creation, and advanced lighting customization. This software is compatible with Windows operating systems only.
- Download the official software from the EPOMAKER website.
- Install and launch the software.
- Follow the on-screen instructions to customize key assignments, create macros, and adjust RGB lighting settings.

Image: Screenshots of the programmable software for the Galaxy80, showing options for key configuration, macro recording, and real-time lighting adjustments. Note: This software is for Windows systems only.
6. Maintenance
6.1. Cleaning
- Disconnect the keyboard from all power sources before cleaning.
- Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution to wipe the keycaps and keyboard surface.
- For dust and debris between keycaps, use compressed air or a small brush.
- Avoid using harsh chemicals or abrasive materials.
6.2. Hot-Swappable Switches
The Galaxy80 features a hot-swappable PCB, allowing you to change mechanical switches without soldering.
- Using the provided keycap puller, gently remove the desired keycap.
- Using a switch puller, carefully grip the switch from the top and bottom clips.
- Pull the switch straight up to remove it from the PCB.
- Align the pins of the new switch with the holes on the PCB. Ensure the pins are straight to avoid bending.
- Gently press the new switch into place until it clicks securely.
- Replace the keycap.

Image: Visual guide demonstrating the hot-swappable PCB feature, showing how to remove and insert mechanical switches, along with details on pre-lubed linear switches, hot-swap sockets, and south-facing LEDs.
7. Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding in wireless mode. | Low battery, incorrect mode selected, receiver not connected, out of range. |
|
| Keyboard not responding in wired mode. | Cable not connected properly, power switch in ON position. |
|
| RGB backlight not working or stuck. | Backlight turned off, software conflict, low battery. |
|
| Keys not registering or double-typing. | Faulty switch, debris under keycap/switch. |
|
| Difficulty finding the 2.4GHz dongle. | Hidden storage location. |
|
8. Specifications
| Feature | Detail |
|---|---|
| Model | Galaxy80 |
| Brand | EPOMAKER |
| Connectivity Technology | Bluetooth 5.0, 2.4GHz Wireless, USB-C Wired |
| Layout | Tenkeyless (TKL) |
| Switch Type | Mechanical (Hot-Swappable 3/5-pin) |
| Backlight | RGB (South-facing LEDs) |
| Battery Capacity | 4000mAh |
| Material | Aluminum Alloy (Shell) |
| Item Weight | 4.6 pounds (approx. 2.09 kg) |
| Package Dimensions | 17.2 x 7.44 x 2.52 inches |
| Compatible Devices | Laptop, PC, Tablet |
| Special Features | Gasket Structure, 5-Layered Acoustic Structure, Programmable Software (Windows only) |

Image: Technical drawing of the Galaxy80 keyboard, detailing its TKL layout, dimensions (14.4 inches length, 5.3 inches width, 1.3 inches height), and weight (1.7 kg).
9. Warranty and Support
For warranty information and technical support, please refer to the official EPOMAKER website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
Manufacturer: EPOMAKER