1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your DrunkDeer A75 Ultra Rapid Trigger HE Keyboard. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.

Image: The DrunkDeer A75 Ultra Rapid Trigger HE Keyboard, a 75% layout keyboard with clear keycaps and RGB backlighting.
2. What's in the Box
Verify that all items are present in the package:
- DrunkDeer A75 Ultra Keyboard x 1
- Quick Guide x 1
- Switch Puller x 1
- USB-C Cable x 1
- Extra Switches x 2
- Extra Keycaps x 6

Image: A visual representation of the DrunkDeer A75 Ultra keyboard packaging and its contents, including the keyboard, cable, quick guide, switch puller, extra switches, and keycaps.
3. Setup
3.1 Connecting the Keyboard
- Locate the USB-C port on the DrunkDeer A75 Ultra keyboard.
- Connect one end of the provided USB-C cable to the keyboard.
- Connect the other end of the USB-C cable to an available USB port on your computer.
- The keyboard will automatically be detected by your operating system.
3.2 Initial Power On
Upon successful connection, the keyboard's RGB backlighting will illuminate, indicating it is powered on and ready for use. No additional drivers are typically required for basic functionality.
4. Operating Instructions
4.1 Key Features
The DrunkDeer A75 Ultra keyboard incorporates advanced features for enhanced performance:
- Gen-2 Hall Chip: Features high resolution, low power consumption (0.0001mA in sleep mode), ultra-low temperature drift, and a wide adaptation range for precise magnetic field detection, ensuring input stability.
- Dual-solution Instant Switch: Allows toggling between Soft Bounce and Firm Bottom-Out modes for precise keystroke cushioning, reducing wobble and enhancing precision.
- Rapid Trigger: Keys trigger instantly when pressed and reset upon release. Sensitivity is adjustable from 0.01mm to 2.0mm with 0.01mm accuracy, enabling mid-motion repeats without fixed actuation points.
- RT Plus: Includes Rapid Trigger Plus functions such as RDT (2-in-1 Action Keys) and Last Win (SOCD & Snap Tap). RDT allows two distinct actions per key based on press and release. Last Win prioritizes the last pressed key when multiple keys are active.
- RT Match: A precision adaptive algorithm designed to address unintended presses at 0.01mm precision. It includes an Automatic Calibration function to eliminate inaccuracies from environmental factors, user operation, or component aging.
4.2 Web Driver Software
Utilize the DrunkDeer Web Driver for advanced customization and control over your keyboard's settings, including key remapping, lighting effects, and macro creation. The software supports on-board memory for saving profiles.

Image: Screenshot of the DrunkDeer Web Driver interface, showing options for profile management, key remapping, and lighting customization.
4.3 RGB Backlighting
The keyboard features customizable RGB backlighting with 18 different light effects and 10 levels of brightness. Single key customization is also supported.

Image: The DrunkDeer A75 Ultra keyboard showcasing its vibrant RGB backlighting with various color effects.
4.4 Key Remapping
Customize key functions to improve efficiency, personalize your experience, and expand functional flexibility. This allows you to adjust the key layout based on personal habits and needs, and ensure compatibility with different devices and versions.

Image: A visual representation of the key remapping interface within the DrunkDeer software, highlighting customization options for various keys.
4.5 Physical Features
The keyboard is designed with attention to detail and functionality:
- Metal Knob: The 'A' metal knob is textured for easy operation, combining cutting-edge technology with precision.
- Custom PC Keycaps: Designed in-house by DrunkDeer, these keycaps ensure a crisp sound with every strike and feature side-printed Morse code for a blend of vintage and modern aesthetics.

Image: A close-up view of the 'A' metal knob on the DrunkDeer A75 Ultra keyboard, highlighting its textured surface.

Image: A detailed view of the custom PC keycaps, showing the side-printed Morse code design.
5. Maintenance
5.1 Cleaning the Keyboard
To maintain the appearance and functionality of your keyboard:
- Disconnect the keyboard from your computer before cleaning.
- Use a soft, lint-free cloth lightly dampened with water or a mild cleaning solution to wipe the keycaps and chassis.
- Avoid using harsh chemicals, abrasive materials, or excessive moisture, as these can damage the keyboard.
- For dust and debris between keycaps, use compressed air or a small brush.
5.2 Switch and Keycap Replacement
The DrunkDeer A75 Ultra uses magnetic switches and standard keycaps, allowing for easy replacement. Use the provided switch puller and keycap puller (if applicable) to carefully remove and install components.
6. Troubleshooting
If you encounter issues with your DrunkDeer A75 Ultra keyboard, refer to the following common solutions:
- Keyboard Not Responding: Ensure the USB-C cable is securely connected to both the keyboard and your computer. Try a different USB port or cable.
- Keys Not Registering: Check if any debris is lodged under the keycap. If using the Web Driver, ensure no conflicting key remappings are active.
- RGB Lighting Issues: Verify that the lighting settings in the Web Driver are configured correctly. Ensure the keyboard is receiving sufficient power.
- Inconsistent Rapid Trigger: Perform an Automatic Calibration via the Web Driver to account for environmental factors or component aging.
- Software Not Detecting Keyboard: Ensure the Web Driver software is up-to-date. Restart your computer and the software.
If problems persist, please contact DrunkDeer customer support for further assistance.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | DrunkDeer |
| Model | A75 Ultra |
| Compatible Devices | PC |
| Connectivity Technology | USB-C |
| Keyboard Description | Gaming |
| Recommended Uses | Gaming |
| Special Features | Rapid Trigger, RT Plus, RT Match |
| Color | White |
| Product Dimensions | 17"L x 12.28"W x 4.6"H |
| Material | Plastic |
| Power Source | USB Powered |
| Switch Type | Magnetic (Hall Effect) |
| Keyboard Layout | QWERTY |
| Number of Keys | 82 |
| Actuation Sensitivity | 0.01mm to 2.0mm (adjustable) |
| Polling Rate | 8K Hz |
8. Warranty and Support
8.1 Warranty Information
DrunkDeer products are covered by a limited warranty against manufacturing defects. Please refer to the official DrunkDeer website or your purchase documentation for specific warranty terms and conditions.
8.2 Customer Support
For technical assistance, troubleshooting, or warranty claims, please contact DrunkDeer customer support through their official website or the contact information provided with your product. Have your product model and purchase details ready when contacting support.