HUION H420
HUION H420 OSU Graphics Drawing Tablet User Manual
Model: H420 | Brand: HUION
1. Introduction
This user manual provides comprehensive instructions for the setup, operation, and maintenance of your HUION H420 OSU Graphics Drawing Tablet. The H420 is a compact and responsive digital drawing tablet designed for various applications, including digital art, photo editing, and playing rhythm games like OSU!. Its lightweight and slim design make it highly portable, suitable for both left-handed and right-handed users.
2. What's in the Box
Upon opening the package, please verify that all components are present and in good condition. The standard package contents include:
- HUION H420 Graphics Tablet
- Wireless Digital Pen
- USB Cable
- Replacement Pen Nibs (4 included)
- Pen Nib Clip
- User Manual (this document)
- Driver CD (for older systems, latest drivers recommended from website)
- AAA Battery (for the digital pen)

Figure 2.1: Package Contents. This image displays the HUION H420 tablet, digital pen, USB cable, driver CD, replacement pen nibs, and a user manual.
3. Product Overview
The HUION H420 tablet and its digital pen are designed for intuitive and precise input. Familiarize yourself with the main components:
3.1. Graphics Tablet

Figure 3.1: HUION H420 Graphics Tablet and Digital Pen. The image shows the compact black tablet with three circular express keys on the left side, and the digital pen positioned below it.
- Active Area: The 4 x 2.23 inch active area is where pen input is registered.
- Express Keys: Three customizable express keys are located on the left side of the tablet. These can be programmed for various functions like Scroll, Undo, or Eraser via the Huion driver.
- Connectivity: The tablet connects to your computer via a Mini USB port.

Figure 3.2: Mini USB Port. This image highlights the Mini USB port on the side of the tablet, used for connecting to a computer.

Figure 3.3: Tablet Dimensions. The image illustrates the physical dimensions of the tablet, showing its compact size.
3.2. Digital Pen

Figure 3.4: Digital Pen. This image focuses on the digital pen, indicating its pressure sensitivity and the need for one AAA battery to operate.
- Pressure Sensitivity: The pen features 2048 levels of pressure sensitivity, allowing for varied line thickness and opacity depending on the pressure applied.
- Pen Buttons: Two customizable buttons are located on the side of the digital pen. These can be configured for functions such as right-click or scroll.
- Power: The pen requires one AAA battery for operation.
4. Setup Guide
Follow these steps to set up your HUION H420 Graphics Tablet:
- Install Drivers:
Before connecting the tablet, it is highly recommended to install the latest drivers. You can find these on the official HUION website. If you are using the included driver CD, ensure your system is compatible with the version provided. For optimal performance and compatibility, always download the most current drivers from the manufacturer's website.
System Requirements: The tablet is compatible with Windows 7 or later, and Mac OS 10.8 or later.
- Insert Battery into Digital Pen:
Unscrew the pen barrel and insert one AAA battery, ensuring correct polarity. Reassemble the pen.
- Connect Tablet:
Connect the HUION H420 tablet to your computer using the provided USB cable. Plug the Mini USB end into the tablet and the standard USB end into an available USB port on your computer.
- Driver Configuration:
After installation, open the Huion driver software. Here you can customize the active area, pen pressure sensitivity, and program the express keys on both the tablet and the pen to suit your workflow. For specific applications like OSU!, you may need to adjust settings within the game or driver for optimal performance (e.g., disabling Windows Ink or TabletPC support if it interferes).

Figure 4.1: OS Compatibility and Express Keys. This image illustrates the tablet's compatibility with Mac OS X 10.8.0 and above, and Windows 7, 8, 8.1, and 10, along with the location of the three express keys.
5. Operating the Tablet
The HUION H420 can be used for various digital tasks:
5.1. General Use
- Mouse Replacement: The digital pen can function as a mouse, allowing you to navigate your operating system, open applications, and interact with elements by hovering the pen over the active area and tapping for clicks.
- Handwritten Input: Utilize the tablet for handwritten notes, signatures, and diagrams in applications like Microsoft Word, PowerPoint, OneNote, or during web conferencing sessions (e.g., Zoom, Teams, Xsplit).
5.2. Digital Art and Design
The H420 is compatible with most major drawing and design software. The pressure sensitivity of the pen allows for dynamic brush strokes and precise control.
- Compatible Software: Adobe Photoshop, Paint Tool SAI, Illustrator, Corel Draw, Corel Painter, Sketchbook, Manga Studio, Clip Studio Paint, and more.
- Pressure Control: Apply varying pressure with the pen to achieve different line weights, opacities, and brush effects within your chosen software.

Figure 5.1: Software Compatibility. This image visually represents the tablet's compatibility with popular creative software applications.
5.3. OSU! Gaming
The HUION H420 is a popular choice for playing the rhythm game OSU! due to its responsive tracking and compact size. For OSU! gameplay, driver installation is often not required; it can be plug-and-play.
- Plug and Play: For OSU!, simply connect the tablet. No driver installation is typically needed.
- Optimal Settings: Some users may prefer to disable "Windows Ink" or "TabletPC support" in their operating system settings or the Huion driver to prevent interference during gameplay.

Figure 5.2: OSU! Gaming Compatibility. The image shows the tablet in a context related to the OSU! rhythm game.
6. Maintenance
Proper care will extend the life of your tablet:
- Cleaning: Use a soft, dry cloth to clean the tablet surface. Avoid abrasive cleaners or solvents.
- Pen Nibs: The pen nibs will wear down with use. Replace them when they become too short or sharp to ensure smooth operation and prevent scratching the tablet surface. Use the included nib clip to easily remove and insert new nibs.
- Storage: Store the tablet and pen in a clean, dry place away from extreme temperatures and direct sunlight.
- Battery Replacement: Replace the AAA battery in the digital pen when its performance degrades or it stops responding.
7. Troubleshooting
If you encounter issues with your HUION H420 tablet, refer to the following common solutions:
| Problem | Possible Cause / Solution |
|---|---|
| Tablet not responding / No cursor movement. |
|
| Pen pressure not working. |
|
| Express keys or pen buttons not functioning. |
|
| Cursor jumps or erratic movement. |
|
8. Technical Specifications
| Feature | Specification |
|---|---|
| Model | H420 |
| Active Area | 4 x 2.23 inches (101.6 x 56.6 mm) |
| Dimensions (LxWxH) | 7 x 4.4 x 0.3 inches (177 x 112 x 8 mm) |
| Weight | 4.5 ounces (127.5 g) |
| Pressure Sensitivity | 2048 Levels |
| Report Rate | 233 RPS (Reports Per Second) |
| Resolution | 4000 LPI (Lines Per Inch) |
| Express Keys | 3 Customizable Keys |
| Pen Buttons | 2 Customizable Buttons |
| Pen Power | 1 x AAA Battery |
| Connectivity | USB (Mini USB port on tablet) |
| Operating System Compatibility | Windows 7 or later, Mac OS 10.8 or later |
| Color | Black |
9. Warranty and Support
For warranty information and technical support, please refer to the official HUION website or contact their customer service directly. Details regarding product registration, driver downloads, and frequently asked questions can typically be found on their support pages.
Official Website: www.huion.com
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