1. Introduction
The ATK U2 Series Ultimate Gaming Mouse is a high-performance, lightweight, and ergonomic mouse designed for e-sports and office use. It features tri-mode connectivity (wired, 2.4G wireless, Bluetooth), an 8000Hz polling rate, and advanced sensors for precision and responsiveness. This manual provides detailed instructions for setting up, operating, and maintaining your ATK U2 Series mouse.
Figure 1: ATK U2 Series Gaming Mouse highlighting PAW3395/Ultra, Nordic 52840, 750IPS, 8000Hz, 50G.
Video 1: ATK U2 Series Gaming Mouse Promotional Video.
2. Package Contents
The contents of your ATK U2 Series mouse package may vary slightly depending on the specific model (U2 SE, U2, U2 Plus, U2 Pro, U2 Pro Max, U2 Ultra, U2 Ultimate). Please refer to the table below for details:
Figure 2: Package contents for various ATK U2 Series models.
| Model | Mouse Feet | Receiver | Cable | Other Accessories |
|---|---|---|---|---|
| U2 SE / U2 | Standard full-size feet | Star-flash 1K receiver | Braided data cable | User manual, Warranty card |
| U2 Plus | Standard full-size feet | Star-flash 1K receiver | Braided data cable | Anti-slip stickers, User manual, Warranty card |
| U2 Pro | Competitive feet + extra gray competitive feet | Original 1K receiver | Braided data cable | Anti-slip stickers, User manual, Warranty card |
| U2 Pro Max | Competitive feet + extra gray competitive feet | 8K NANO receiver | 8K ultra-data cable | Anti-slip stickers, User manual, Warranty card |
| U2 Ultra | Competitive feet + extra gray competitive feet | Nordic 8K receiver | 8K ultra-data cable | Anti-slip stickers, User manual, Warranty card |
| U2 Ultimate | Competitive feet + extra red balanced feet | Nordic 8K receiver | 8K ultra-data cable | Anti-slip stickers, User manual, Warranty card |
3. Specifications
The ATK U2 Series offers various models with slightly different specifications. Key features are detailed below:
Figure 3: Detailed product parameters for ATK U2 Series models.
| Feature | Description |
|---|---|
| Product Name | ATK Liekong U2 Holeless Lightweight Mouse |
| Connection Interface | USB interface |
| Mouse Type | Wired, 2.4G Wireless, Bluetooth (Tri-mode) |
| Applicable Hand Type | Right Hand |
| Compatible Systems | Windows |
| Applicable Equipment | Laptop, PC |
| Lighting Effect | No |
| Mouse Material | Other (likely high-quality plastic) |
| Origin | Mainland China |
| Feature | U2 SE / U2 | U2 Plus / U2 Pro | U2 Pro Max / U2 Ultra / U2 Ultimate |
|---|---|---|---|
| Sensor | Xhero AI / PAW3395SE | PAW3395 | PAW3950 / PAW3950Ultra |
| Main Control Chip | Shanghai Haowei Si (original) | Nordic 52840 (flagship) | |
| Wireless Technology | Second-generation Smart Speed Wireless Transmission Technology, ATK Juesha® Competitive Firmware | ||
| Polling Rate | Wired 1K / Wireless 1K | Wired/Wireless Dual 8K | |
| Battery Capacity | 500mAh | 800mAh | |
| Battery Life (1K Polling) | 150 hours (Star-flash) | 200 hours (1000Hz) | |
| Weight | 49g±2g | 55g±2g | 44g±2g |
| Main Micro-switch | Huanuo Ice Poison Red Dot v2 | Huanuo Ice Poison Pink Dot | Omron Optical / ATK Custom Tuned Optical |
| Side Micro-switch | TTC | ||
| DPI Adjustment Range (PAW3950) | 50-30000 (overclockable to 36000) | 10-30000 (overclockable to 42000) | |
| Tracking Speed | 750IPS | ||
| Acceleration | 50G | ||
| LOD Height (PAW3950) | 0.7/1.0/2.0mm | 0.7mm~1.7mm | |
4. Setup Instructions
4.1 Connection Modes
Your ATK U2 Series mouse supports three connection modes: Wired, 2.4G Wireless, and Bluetooth. You can switch between these modes as needed.
Figure 4: Tri-mode connection options: 2.4G, Bluetooth, and Wired.
4.1.1 Wired Connection
- Connect the provided USB data cable to the mouse's USB-C port.
- Plug the other end of the USB data cable into an available USB port on your computer.
- The mouse will be automatically detected and ready for use.
4.1.2 2.4G Wireless Connection
- Locate the 2.4G wireless receiver (dongle) in your package.
- Plug the 2.4G receiver into an available USB port on your computer.
- Turn on the mouse. The mouse should automatically connect to the receiver.
- For models supporting 8KHz polling rate, ensure your PC meets the recommended specifications (see section 4.3).
4.1.3 Bluetooth Connection
- Turn on the mouse and switch it to Bluetooth mode (refer to the mouse's physical switch if available).
- On your computer, go to Bluetooth settings and enable Bluetooth.
- Search for new devices and select the ATK U2 Series mouse from the list.
- Follow any on-screen prompts to complete the pairing process.
4.2 Driver Software (ATK HUB)
The ATK U2 Series mouse supports web-based driver software (ATK HUB) for advanced customization. This allows for efficient and fast configuration across multiple systems.
Figure 5: ATK HUB web-based driver interface for customization.
To access the ATK HUB, open your web browser and navigate to the official ATK driver website (URL not provided, please refer to packaging or official product page). Here you can customize DPI settings, button assignments, polling rate, and other performance parameters.
4.3 Recommended PC Configuration for 8KHz Polling Rate
To fully experience the 8KHz polling rate capability of the ATK U2 Series mouse, ensure your computer meets or exceeds the following minimum recommended specifications:
Figure 6: Recommended PC specifications for optimal 8KHz polling rate performance.
- CPU: Intel Core i7 9700K or above, or AMD Ryzen 7 3700X or above
- Display: Refresh rate of 240Hz or above
- Graphics Card: NVIDIA GTX 1080 or above, or AMD RX 5700 or above
- RAM: 16GB or above
5. Operating Instructions
5.1 DPI Adjustment
The ATK U2 Series mouse features a wide DPI adjustment range, from 50 to 30000 (up to 42000 for PAW3950Ultra models via overclocking). You can adjust the DPI settings using the ATK HUB software to match your preference and game requirements.
5.2 Polling Rate
Certain models of the ATK U2 Series support a dual wired/wireless 8000Hz polling rate, providing extreme responsiveness. Lower polling rates (e.g., 1000Hz) are also available and can be configured via the ATK HUB software.
Figure 7: Nordic 52840 flagship main control chip, demonstrating 0.3993ms average button delay.
5.3 Ergonomics and Grip
The ATK U2 Series mouse is designed for a comfortable experience, suitable for both palm and claw grip styles. Its double-sided tapered waist design conforms to hand grip habits, allowing for more flexible movement, while the triangular fixed structure at the sides and tail provides a stronger sense of lock.
Figure 8: Ergonomic design supports both palm and claw grip styles.
5.4 Battery Life
The ATK U2 Series mice are equipped with either a 500mAh or 800mAh battery, offering long-lasting performance. At a 1KHz polling rate, models with a 500mAh battery provide approximately 150 hours of battery life (via Star-flash connection), while 800mAh models offer up to 200 hours (at 1000Hz).
Figure 9: Battery capacity for extended usage.
6. Maintenance
To ensure the longevity and optimal performance of your ATK U2 Series mouse, follow these maintenance guidelines:
- Cleaning: The mouse features an ice-feel coating that is anti-fouling and easy to clean. Use a soft, dry cloth to wipe the surface. For stubborn dirt, a slightly damp cloth with mild soap can be used, ensuring no liquid enters the mouse.
- Storage: Store the mouse in a cool, dry place away from direct sunlight and extreme temperatures.
- Cable Care: If using the wired connection, avoid sharp bends or excessive pulling on the cable to prevent damage.
- Receiver Protection: When not in use, consider unplugging the 2.4G receiver or storing it safely to prevent loss or damage.
Figure 10: The ice-feel coating is designed for durability and easy cleaning.
7. Troubleshooting
- Mouse not responding:
- Ensure the mouse is powered on.
- Check the connection: For wired, ensure the USB cable is securely plugged in. For 2.4G wireless, ensure the receiver is plugged in and the mouse is in 2.4G mode. For Bluetooth, ensure Bluetooth is enabled on your device and the mouse is paired.
- Try a different USB port or restart your computer. - Lag or stuttering:
- For 2.4G wireless, ensure the receiver is close to the mouse and there are no major obstructions.
- If using 8KHz polling rate, verify your PC meets the recommended specifications (CPU, GPU, RAM, Display refresh rate). Insufficient PC specs can cause performance issues at high polling rates.
- Update mouse drivers via ATK HUB. - DPI not changing:
- Ensure the ATK HUB software is installed and running correctly.
- Check if the DPI settings are correctly applied in the software. - Battery not charging:
- Ensure the USB cable is properly connected to both the mouse and a power source/computer.
- Try a different USB cable or charging port.
8. User Tips
- Optimize for Gaming: For competitive gaming, consider using the wired or 2.4G wireless connection with the highest supported polling rate (up to 8000Hz on compatible models) for the lowest latency.
- Customization: Utilize the ATK HUB software to fine-tune DPI, button assignments, and other settings to match your personal playstyle and application needs.
- Ergonomic Comfort: Experiment with different grip styles (palm or claw) to find what feels most comfortable for extended use. The mouse's design supports both.
- Battery Management: To maximize wireless battery life, consider reducing the polling rate when not engaged in high-intensity gaming, or switch to wired mode when charging.
9. Warranty and Support
For warranty information, please refer to the warranty card included in your product packaging. If you encounter any issues or require technical assistance, please contact the seller or ATK customer support through their official channels. Keep your proof of purchase for warranty claims.