1. Introduction
The AJAZZ MK87 is a high-performance 75% layout wireless mechanical keyboard designed for both PC and Mac users. It features tri-mode connectivity (Wired, 2.4G Wireless, Bluetooth), full-color RGB backlighting, hot-swappable switches, and durable PBT keycaps. Equipped with a 10000mAh lithium-ion battery and a custom gasket mount structure with 5-layer sound dampening, the MK87 delivers a premium typing experience. Some versions also include a customizable 1.14-inch Color TFT Display for enhanced functionality.

AJAZZ MK87 Wireless Mechanical Keyboard overview.
2. Package Contents
Please check the box for the following items:
- 1 x AJAZZ MK87 Mechanical Keyboard
- 1 x Data Cable (USB-C to USB-A)
- 1 x 2.4G Wireless Receiver
- 1 x User Manual
- 1 x 2-in-1 Switch and Keycap Puller
- 1 x Dust Cover
- 3 x Free Bonus Switches
- (For Screen-Equipped Version Only) 3 x Additional Keycaps

Key features and components included with the keyboard.
3. Product Overview
The AJAZZ MK87 keyboard is designed with user experience and customization in mind. Key features include:
- 75% Layout (87 Keys): Compact yet functional, retaining essential keys.
- Tri-Mode Connectivity: Seamless switching between Wired (USB-C), 2.4G Wireless, and Bluetooth connections.
- Hot-Swappable Switches: Easily change switches (compatible with 3-pin and 5-pin mechanical switches) without soldering.
- PBT Keycaps: Durable and resistant to shine, providing a premium feel.
- Gasket Mount Structure: Enhances typing feel and sound by isolating the plate from the case.
- 5-Layer Sound Dampening: Reduces unwanted noise for a pure, clean typing sound. Includes Silicone Dampening Pads, Case Foam, Plate Foam, Switch Pads, and Sound Tuning Film.
- 10000mAh Battery: Long-lasting power for extended wireless use.
- Full-Color RGB Backlighting: Customizable lighting with 20 effects and approximately 16.8 million colors.
- Customizable TFT Module (Optional): A 1.14-inch color TFT display that shows time, date, battery level, connection mode, and can display custom GIFs. Features a removable knob for easy replacement.
- Double-Section Foot Support: Adjustable feet for ergonomic typing angles.

Detailed diagram of the 5-Layer Progressive Dampening Filling.

Customizable TFT Module with removable knob and display screen.

Color-Flow Side Wing Lighting.
Product unboxing and feature demonstration video.
4. Setup Instructions
4.1 Initial Charging
Before first use, it is recommended to fully charge the keyboard. Connect the provided USB-C data cable to the keyboard's USB-C port and the other end to a computer's USB port. Refer to the 'Charging Instructions' section for more details.
4.2 Connectivity Modes
The AJAZZ MK87 supports three connection modes: Wired, 2.4G Wireless, and Bluetooth. Use the switches located on the keyboard to select your desired mode.

Full-Series Tri-Mode Connectivity.
- Wired Mode: Connect the keyboard directly to your computer using the USB-C data cable. The keyboard will automatically switch to wired mode.
- 2.4G Wireless Mode:
- Locate the 2.4G wireless receiver.
- Plug the receiver into an available USB port on your computer.
- Switch the keyboard's mode selector to '2.4G'. The keyboard should connect automatically.
- Bluetooth Mode: The keyboard can pair with up to 3 Bluetooth devices. Use the combo keys FN+W/E/R for device switching.
- Switch the keyboard's mode selector to 'BT'.
- On your device (PC, Mac, Android), search for Bluetooth devices and select 'AJAZZ MK87'.
- Follow any on-screen prompts to complete pairing.
- To switch between paired Bluetooth devices, press FN + W, FN + E, or FN + R.
4.3 Adjusting Keyboard Angle
The keyboard features double-section foot support on the underside. Flip out the feet to adjust the typing angle for improved ergonomics.
5. Operating Instructions
5.1 RGB Backlighting
The MK87 offers extensive RGB backlighting customization with 20 lighting effects and approximately 16.8 million colors. Use the dedicated function keys or software (if available) to cycle through effects, adjust brightness, and change colors.

Full-Color RGB Backlighting with 20 lighting effects.
5.2 TFT Display (Screen-Equipped Version)
The 1.14-inch Color TFT Display provides real-time information such as time, date, battery level, and current connection mode. You can also customize the display to show GIFs. GIFs need to be uploaded via the official driver software.

1.14" Color TFT Display functionality.
5.3 Hot-Swap Functionality
The keyboard's hot-swap sockets allow for easy replacement of mechanical switches without soldering. Use the included 2-in-1 switch puller to carefully remove existing switches and insert new 3-pin or 5-pin compatible switches.

Flagship Switches and their specifications.
6. Charging Instructions
To ensure optimal battery life and safety, please follow these charging guidelines:
- It is recommended to charge the keyboard only via a computer USB port.
- Do not charge the keyboard using a fast-charging mobile phone charger.
- Do not use low-quality or non-standard power adapters for charging.
- Avoid using over-voltage or over-current power adapters.
- Keep the keyboard away from high-temperature devices during charging.
- The indicator light will be on when charging and will turn off once fully charged.
- Turn off the power switch when the keyboard is not in use for an extended period.
These charging instructions also apply to other devices with similar charging functionality.

Battery life and charging instructions.
7. Maintenance
Proper maintenance will extend the life and performance of your AJAZZ MK87 keyboard:
- Cleaning: Regularly clean the keyboard with a soft, dry cloth. For deeper cleaning, use the provided keycap puller to remove keycaps and clean dust and debris from the switches and plate. A can of compressed air can be useful for removing dust.
- Dust Cover: Use the included dust cover when the keyboard is not in use to prevent dust accumulation.
- Switch and Keycap Replacement: The hot-swap feature allows for easy replacement of switches and keycaps. Ensure the keyboard is powered off before attempting to remove or insert components.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures.
8. Troubleshooting
If you encounter issues with your AJAZZ MK87 keyboard, try the following steps:
- Keyboard not responding:
- Ensure the keyboard is charged.
- Check the connection mode switch (Wired, 2.4G, BT) is set correctly.
- For 2.4G wireless, ensure the receiver is properly plugged in.
- For Bluetooth, ensure the keyboard is paired and selected on your device. Try re-pairing if necessary.
- In wired mode, try a different USB port or cable.
- Keys not registering:
- Carefully remove the keycap and switch for the affected key.
- Inspect the switch for any bent pins or debris. Reinsert the switch firmly.
- If the issue persists, try replacing the switch with one of the bonus switches.
- RGB lighting not working:
- Ensure the keyboard is powered on and not in a low-power state.
- Check if the lighting effects are turned off or set to minimum brightness.
- Refer to the keyboard's function key combinations for RGB control.
- TFT Display not working (Screen-Equipped Version):
- Ensure the display module is securely attached.
- Check battery level.
- If customizable GIFs are not displaying, ensure they were uploaded correctly via the official driver.
If these steps do not resolve the issue, please contact customer support.
9. Specifications
| Feature | Specification |
|---|---|
| Brand Name | Ajazz |
| Product Model | MK87 |
| Keyboard Standard | 87 Keys (75% Layout) |
| Connectivity | Tri-mode (USB-C Wired, 2.4G Wireless, Bluetooth) |
| Operation Style | Mechanical |
| Switches Hot Swap | Yes (Compatible with 3-pin / 5-pin switches) |
| Keycap Material | PBT plastic |
| Backlight Type | Multicolor RGB (20 Lighting Effects) |
| Battery Capacity | 10000mAh Lithium-Ion |
| Wireless Battery Life | ~36 hours (with backlight) / ~196 hours (backlight off) |
| Display Screen | 1.14" Color TFT Display (Optional, removable) |
| Structure | Gasket Mount Structure, 5-Layer Sound Dampening Filling |
| System Compatibility | Windows Vista/XP/7/8/10/11, Mac, Android |
| Dimensions | 371.8 x 144.3 x 46.9 mm |
| Weight | Standard Version: ~1014g, With Display Version: ~1040g |
| Full Size Keyboard | No |
| Wrist Support | No |
| Language | English |
| Application | Desktop |
| Origin | Mainland China |

Product Dimensions and Key Specifications.