1. Introduction
The EPOMAKER TH87 JIS is an 87-key Tenkeyless (TKL) mechanical gaming keyboard designed with a Japanese layout. It offers versatile triple-mode connectivity (wired, 2.4GHz wireless, and Bluetooth), hot-swappable switches, and dynamic RGB backlighting. Equipped with a high-capacity 10000mAh battery, it ensures extended usage for both gaming and productivity.

2. Package Contents
Please check the box for the following items:
- 1 * TH87 JIS Wireless Gaming Keyboard
- 1 * USB A-to-C Cable
- 1 * Wireless 2.4GHz Receiver (Stowed Under Side Kickstand)
- 2 * Preliminary Switches (for testing or replacement)
- 1 * 2-in-1 Switch & Key Cap Puller
- 1 * Japanese Manual & Brand Card

3. Setup Guide
3.1 Physical Setup
The TH87 JIS keyboard features a comfortable Cherry Profile keycap shape and adjustable typing angles. You can adjust the keyboard's height using the two-stage kickstands on the bottom to achieve angles of 6, 8, or 10.5 degrees for ergonomic typing.

3.2 Connectivity
The TH87 JIS supports three connection modes: Wired (USB Type-C), 2.4GHz Wireless, and Bluetooth. A switch on the back of the keyboard allows you to select your preferred mode.
- Wired Mode: Connect the keyboard to your device using the provided USB A-to-C cable. This mode offers a 2ms latency and a 1000Hz polling rate.
- 2.4GHz Wireless Mode: Locate the 2.4GHz receiver, which is conveniently stowed under one of the side kickstands on the keyboard's bottom. Plug the receiver into an available USB port on your device. This mode provides a 5ms latency and a 1000Hz polling rate.
- Bluetooth Mode: Switch the mode selector to Bluetooth. The keyboard can connect to multiple Bluetooth devices. Refer to the operating instructions for pairing details. This mode has an 11ms latency and a 125Hz polling rate.


3.3 OS Compatibility
The TH87 JIS keyboard is compatible with Mac, Windows, and Android operating systems. Use the dedicated switch on the keyboard to select between Mac and Windows modes for optimal key mapping.
4. Operating Instructions
4.1 Basic Key Functions
The TH87 JIS features a compact TKL (91-key) Japanese layout, including dedicated keys such as "kana", "conversion", and "no conversion" for seamless Japanese input. The PBT Cherry keycaps provide a delicate and firm typing experience.

4.2 FN Key Combinations
The keyboard supports various FN key combinations for quick access to multimedia controls, backlight settings, and other functions. Please refer to the included Japanese manual for a detailed list of FN key shortcuts.
4.3 RGB Backlight Control
The TH87 JIS is equipped with an all-key independent RGB backlight system with south-facing LEDs. You can adjust the saturation, brightness, and blinking speed of the backlight. Dynamic lighting effects can be synchronized with game rhythms for an immersive experience.

5. Customization
5.1 Hot-Swappable Switches
The TH87 JIS features a hot-swappable PCB design, allowing you to easily change switches without soldering. It is compatible with mainstream 5-pin mechanical switches. Use the included 2-in-1 switch puller to remove and insert switches.

5.2 Custom Driver Software
Enhance your keyboard experience with the Chrome-based keyboard driver software (compatible with Mac/Windows, online/offline operation). This software allows you to:
- Key Reassignment: Remap keys to suit your preferences.
- Macro Recording: Set complex operation sequences as macro commands.
- SOCD Advanced Key: Utilize advanced key functions.
- Backlight Adjustment: Fine-tune RGB lighting effects.
- System Settings: Configure various keyboard parameters.


6. Maintenance
To ensure the longevity and optimal performance of your EPOMAKER TH87 JIS keyboard, follow these maintenance guidelines:
- Cleaning Keycaps: Regularly remove keycaps using the provided puller and clean them with a mild soap solution and a soft cloth. Ensure they are completely dry before reattaching.
- Cleaning Switches: Use compressed air to remove dust and debris from around and under the switches. For deeper cleaning, remove switches and clean the PCB area.
- Battery Care: To maximize battery life, avoid completely draining the 10000mAh battery frequently. Charge the keyboard when the battery indicator is low. Store the keyboard in a cool, dry place when not in use for extended periods.
- General Cleaning: Wipe the keyboard case with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials.
7. Troubleshooting
If you encounter any issues with your keyboard, please refer to the following common troubleshooting steps:
- Keyboard Not Responding:
- Ensure the keyboard is properly connected in wired mode, or that the 2.4GHz receiver is securely plugged in, or that Bluetooth is paired correctly.
- Check the connection mode switch on the keyboard to ensure it's set to the desired mode (USB, 2.4G, or BT).
- Verify the OS switch (Mac/Win) is set correctly for your system.
- Charge the keyboard if using wireless modes, as a low battery can affect performance.
- Keys Not Registering:
- If individual keys are not working, try removing and re-inserting the switch for that key. The hot-swap feature allows for easy reseating.
- Ensure no debris is lodged under the keycap or switch.
- Backlight Not Working/Incorrect:
- Check backlight settings using FN key combinations or the custom driver software.
- Ensure the keyboard is not in a low-power mode that might disable backlighting.
- Wireless Connectivity Issues:
- For 2.4GHz, try plugging the receiver into a different USB port or moving the keyboard closer to the receiver.
- For Bluetooth, unpair and re-pair the keyboard with your device. Ensure no other Bluetooth devices are causing interference.
8. Specifications
The following table details the technical specifications of the EPOMAKER TH87 JIS Mechanical Keyboard:

| Feature | Detail |
|---|---|
| Brand | EPOMAKER |
| Model | TH87 JIS |
| Layout | Tenkeyless (TKL) Japanese Array |
| Number of Keys | 87 keys |
| Battery | 10000mAh |
| Battery Life | Approx. 45 hours (backlight max brightness), 200 hours (backlight off) |
| Connection Method | Bluetooth, 2.4GHz Wireless, USB Type-C Wired |
| Supported OS | Mac, Windows, Android |
| Main Unit Size | 36.65 × 14.21 × 4.14 cm |
| Main Unit Weight | 1 kg |
| Front Height | 18.5 mm |
| Typing Angle | Adjustable 3 stages (6, 8, 10.5 degrees) with 2-stage kickstand |
| Case Material | ABS resin |
| Plate Material | PC Plate (Flex cut) |
| Stabilizer | Plate-mounted |
| Mounting Structure | Gasket Mount |
| Soundproof Design | PORON sandwich foam, IXPE switch pad, sound enhancement pad, EPDM switch socket pad, silicon bottom five-layer structure |
| Key Cap Shape | Cherry Profile |
| Key Cap Material | PBT Key Cap |
| Key Cap Manufacturing | Double Shot Molding |
| Switch | 5-pin mechanical switch (factory lubricated) |
| Hot Swap Ready | Yes |
| RGB | Yes, per-key adjustable, south-facing LEDs |
| Polling Rate | 1000Hz (Wired/2.4GHz), 125Hz (Bluetooth) |
| Latency | 2ms (Wired), 5ms (2.4GHz), 11ms (Bluetooth) |
| Anti-Ghost | Supported, N-key rollover |
8.1 EPOMAKER Creamy Jade Switch Specifications
- Switch Type: 5-pin mechanical switch, linear, pre-lubed
- Trigger Force: 45 ± 5gf
- Bottom-out Force: 50 ± 5gf
- Pre-travel: 2.0 ± 0.4mm
- Total Travel: 3.6 ± 0.4mm
- Light Diffuser: None
8.2 EPOMAKER Sea Salt Quiet Switch Specifications
- Switch Type: 5-pin mechanical switch, silent, linear, pre-lubed
- Trigger Force: 45 ± 5gf
- Bottom-out Force: 51 ± 5gf
- Pre-travel: 1.8 ± 0.4mm
- Total Travel: 3.5 ± 0.4mm
- Top Case: Transparent PC
- Bottom Case: Light Blue PA66
- Stem: Yellow POM
- Special Specification: Dust-proof Specification
9. User Tips
- Space Keycap Size: The space keycap on the TH87 JIS is a standard size for TKL layouts, designed for comfortable typing and compatibility with most aftermarket keycap sets of the same profile.
10. Warranty and Support
For warranty information, technical support, or any product-related inquiries, please contact EPOMAKER customer service through their official website or the retailer from whom you purchased the product. Keep your proof of purchase for warranty claims.





