1. Introduction
The AJAZZ AK820 Max HE is a high-performance 75% layout mechanical gaming keyboard designed for enthusiasts seeking rapid response times and extensive customization. Featuring magnetic switches, adjustable actuation points, and multiple connectivity options, this keyboard offers a superior gaming and typing experience. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to help you get the most out of your AK820 Max HE keyboard.

Figure 1: Front view of the AJAZZ AK820 Max HE keyboard.

Figure 2: Overview of AJAZZ AK820 Max HE key features including 75% layout, 3 modes, TFT screen, Magnetic Switch, 4000mAh Battery, Adjustable Actuation, Dynamic Keystrokes, Hot-swappable, Gasket-Mounted, and PC Plate.
2. Setup Instructions
2.1 Package Contents
Before proceeding, ensure all items are present in the package:
- AJAZZ AK820 Max HE Keyboard
- USB-C Cable
- Keycap Puller
- Switch Puller
- User Manual (this document)
2.2 Initial Connection
Wired Mode:
- 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 automatically recognized by your operating system.
2.4GHz Wireless Mode (Tri-mode Version Only):
- Locate the 2.4GHz USB receiver (dongle) in the keyboard's storage slot or packaging.
- Plug the USB receiver into an available USB port on your computer.
- On the keyboard, press FN + R to switch to 2.4GHz wireless mode. The keyboard's indicator light will confirm the connection.
Bluetooth Mode (Tri-mode Version Only):
- On the keyboard, press FN + Q, FN + W, or FN + E to select one of three Bluetooth channels. The indicator light will flash, indicating pairing mode.
- On your device (PC, Laptop, Tablet, etc.), open Bluetooth settings and search for new devices.
- Select "AJAZZ AK820 Max HE" from the list of available devices to pair.
- Once paired, the indicator light on the keyboard will become solid.
2.3 Software Installation (Windows Only)
To unlock full customization options, including key remapping, macro creation, and RGB lighting effects, download and install the AJAZZ Driver software from the official AJAZZ website. The software is compatible with Windows operating systems only.

Figure 3: Screenshot of the AJAZZ Driver software interface for customization.
3. Operating Instructions
3.1 Key Functions and Layout
The AK820 Max HE features a 75% layout, providing essential keys in a compact form factor. It includes a multifunctional knob for convenient control.
3.2 Multifunctional Knob
- Rotation: Controls system volume (default).
- Press: Mutes/unmutes audio (default).
- Customization: The knob's functions can be customized using the AJAZZ Driver software.
3.3 0.85-inch TFT Display Screen (Tri-mode Version Only)
The TFT display screen provides real-time information and customization options:
- Default Display: Shows time, battery level, and current connectivity mode.
- Navigation:
- Press FN + Knob to enter the setting page.
- Rotate the knob to navigate left/right through options.
- Press the knob to confirm a selection.
- Press FN + B to switch between animation and the main information page.
- Customization: The screen can display custom GIFs and animations via the AJAZZ Driver software.

Figure 4: Close-up of the 0.85-inch TFT display screen showing time, battery, and connectivity status.

Figure 5: Instructions for navigating the TFT display screen using FN+Knob and FN+B.
3.4 Rapid Trigger (RT) Functionality
The Rapid Trigger feature allows for dynamic adjustment of key actuation and deactivation points based on press distance, enabling quicker inputs and immediate repetition.
- Adjustable Range:
- Wired Version: 0.1 mm to 4 mm.
- Tri-mode Version: 0.2 mm to 2.5 mm.
- Benefit: Keys reactivate faster than traditional mechanical switches, ideal for competitive gaming.
3.5 Dynamic Keystrokes (DKS)
DKS allows each key to perform up to four different actions based on the depth of the keypress. This enables complex command sequences from a single key.
- Example: A light press for one action, a deeper press for another.
- Customization: Program up to four distinct actions per key using the AJAZZ Driver software.
3.6 Mod-Tap (MT)
Mod-Tap assigns dual functionalities to a single key:
- Tap: Performs one function (e.g., a letter).
- Hold: Activates another function (e.g., a modifier key like Shift or Ctrl).
- Benefit: Maximizes key utility and improves efficiency in gaming and productivity.
3.7 Toggle Key (TGL)
TGL provides dual operation modes for any key:
- Standard Press: Normal key function.
- Continuous Press Mode: A quick tap initiates repeated keystrokes. Holding the key reverts to normal operation.
- Benefit: Useful for scenarios requiring rapid, repeated inputs.

Figure 6: Diagram illustrating the concepts of Rapid Trigger (RT), Dynamic Keystrokes (DKS), Mod-Tap (MT), and Toggle Key (TGL).
3.8 RGB Backlighting
The keyboard features south-facing RGB LEDs for vibrant backlighting. Lighting effects and brightness can be adjusted via the AJAZZ Driver software.
4. Maintenance
4.1 Cleaning the Keyboard
- Keycaps: Use a keycap puller to remove keycaps. Clean them with a mild soap solution and a soft cloth, then dry thoroughly before reattaching.
- Keyboard Body: Use a soft, lint-free cloth dampened with water or a mild cleaning solution. Avoid excessive moisture.
- Between Keys: Use compressed air to remove dust and debris from between the switches.
4.2 Hot-Swapping Switches
The AK820 Max HE features a hot-swappable PCB, allowing you to change magnetic switches without soldering. This feature is exclusively for magnetic switches.

Figure 7: Diagram illustrating the hot-swappable PCB, magnetic switch, 3-pin/5-pin switch socket, plate-mounted stabilizers, and south-facing LEDs.
- Remove Keycap: Use the provided keycap puller to gently remove the desired keycap.
- Remove Switch: Use the provided switch puller to carefully grip the magnetic switch and pull it straight up.
- Insert New Switch: Align the pins of the new magnetic switch with the holes on the PCB. Press down gently until the switch clicks into place. Ensure it is seated correctly.
- Reattach Keycap: Place the keycap back onto the new switch.
Caution: Ensure the keyboard is disconnected from power before performing any maintenance or switch changes.
5. Troubleshooting
5.1 Keyboard Not Responding
- Wired: Ensure the USB-C cable is securely connected to both the keyboard and the computer. Try a different USB port or cable.
- 2.4GHz Wireless: Ensure the USB receiver is plugged in and the keyboard is in 2.4GHz mode (FN+R). Check battery level if applicable.
- Bluetooth: Ensure Bluetooth is enabled on your device and the keyboard is paired to the correct channel (FN+Q/W/E). Check battery level.
- Battery (Tri-mode): If the Tri-mode version is not responding, the battery might be depleted. Connect the keyboard via USB-C to charge it.
5.2 Keys Not Registering or Double-Typing
- Switch Issue: If a specific key is problematic, the magnetic switch might be faulty or improperly seated. Try hot-swapping the switch as described in Section 4.2.
- Software Glitch: Restart the AJAZZ Driver software or your computer.
- Actuation Point: Check the actuation point settings in the AJAZZ Driver. Adjusting it might resolve the issue.
5.3 RGB Lighting Not Working
- Ensure the lighting is enabled and brightness is turned up in the AJAZZ Driver software.
- Check for any keyboard shortcuts that might toggle lighting on/off.
5.4 Software Not Detecting Keyboard
- Ensure the keyboard is connected via wired mode when using the software.
- Reinstall the AJAZZ Driver software.
- Ensure your operating system is Windows, as the software only supports Windows.
6. Specifications
| Feature | Specification |
|---|---|
| Brand | AJAZZ |
| Model | AK820 Max HE |
| Layout | 75% (81 Keys + Screen + Knob) |
| Switches | Magnetic Switch (Factory-lubed, Hot-swappable) |
| Actuation Point | Adjustable: 0.1-4mm (Wired), 0.2-2.5mm (Tri-mode) |
| Connectivity | Wired only / Tri-Mode (Wired/Bluetooth 5.0/2.4GHz Wireless) |
| Polling Rate | 8000Hz (Wired Version) / 1000Hz (Tri-mode Version) |
| Battery | None (Wired Version) / 4000mAh (Tri-mode Version) |
| Display Screen | None (Wired Version) / 0.85 inch TFT color screen (Tri-mode Version) |
| Case Material | Plastic |
| Plate Material | PC |
| Stabilizers | Pre-lubed Plate-mount |
| Keycaps | Cherry Profile PBT |
| Backlight | South-facing RGB LED |
| Anti-Ghosting | NKRO (N-Key Rollover) |
| Weight | 860g (Wired Version) / 920g (Tri-mode Version) |
| Dimensions | 333 x 143 x 20.5 mm |
| Compatibility | Windows, macOS, Android, PC, Laptop, Tablet, Switch, Xbox, Playstation |

Figure 8: Diagram of the Hall Magnetic Linear Switch with detailed parameters.

Figure 9: Illustration of the keyboard's 3 modes connectivity and compatibility with various operating systems and devices.

Figure 10: PBT Keycaps with Cherry Profile and height measurements in millimeters.
7. User Tips
- Customizing Layouts: If you require a specific language layout (e.g., Russian), consider purchasing compatible keycaps or using the AJAZZ Driver software to remap keys to your preferred layout.
- Firmware Updates: Regularly check the official AJAZZ website for firmware updates to ensure optimal performance and access to new features.
- Experiment with Actuation: Take time to experiment with the adjustable actuation points for different keys, especially for gaming, to find the settings that best suit your playstyle.
- Gasket Mount Benefits: The gasket-mounted design provides a softer, more flexible typing feel. This can reduce fatigue during long sessions.
8. Warranty & Support
For warranty information, please refer to the documentation provided at the time of purchase or contact your retailer. For technical support, driver downloads, and frequently asked questions, please visit the official AJAZZ website or contact AJAZZ customer service directly.