1. Producte acabatview
The ATK U2 Series is a range of ultra-lightweight, ergonomic gaming mice designed for e-sports and office use. Featuring a three-mode connection (2.4G wireless, Bluetooth, wired) and advanced sensors, these mice offer high performance and comfort.

ATK U2 Series mouse highlighting 44g lightweight, bilateral waist design, and Wired/Wireless Dual 8K features.
2. Contingut del paquet
The contents of your ATK U2 mouse package may vary slightly depending on the specific model purchased. Please refer to the table below for details:

Package contents for various ATK U2 models.
| Model | Receptor | Cable | Documentació | Accessoris |
|---|---|---|---|---|
| U2 SE / U2 | Star Flash 1K Receiver | Braided Data Cable | Manual d'usuari, Targeta de garantia | Standard Full-Size Foot Pads |
| U2 Plus | Star Flash 1K Receiver | Braided Data Cable | Manual d'usuari, Targeta de garantia | Standard Full-Size Foot Pads, Anti-slip Stickers |
| U2 Pro | Original 1K Receiver | Braided Data Cable | Manual d'usuari, Targeta de garantia | Standard Gray Competition Foot Pads |
| U2 Pro Max | 8K NANO Receiver | 8K Ultra Data Cable | Manual d'usuari, Targeta de garantia | Standard Gray Competition Foot Pads, Anti-slip Stickers |
| Ultra U2 | Nordic 8K Receiver | 8K Ultra Data Cable | Manual d'usuari, Targeta de garantia | Standard Gray Competition Foot Pads, Anti-slip Stickers |
| U2 Ultimate | Nordic 8K Receiver | 8K Ultra Data Cable | Manual d'usuari, Targeta de garantia | Standard Gray Competition Foot Pads, Anti-slip Stickers |
3. Configuració i connexió
3.1 Modes de connexió
The ATK U2 Series mouse supports three connection modes: 2.4G Wireless, Bluetooth, and Wired. You can switch between these modes as needed.

The ATK U2 mouse offers versatile 3-mode connectivity.
3.2 Connexió sense fil 2.4G
- Inseriu el receptor USB de 2.4 G a un port USB disponible de l'ordinador.
- Turn on the mouse. The mouse should automatically connect to the receiver.
- For models supporting 'Star Flash' connection (U2 SE, U2, U2 Plus), this mode offers faster and more stable performance.

Star Flash connection provides enhanced speed and stability.
3.3 Connexió Bluetooth
- Turn on the mouse and switch to Bluetooth mode (refer to your specific model's switch location).
- A l'ordinador o dispositiu, vés a la configuració de Bluetooth i cerca dispositius nous.
- Select the ATK U2 mouse from the list of available devices to pair.
3.4 Connexió per cable
- Connect the provided USB data cable to the mouse and an available USB port on your computer.
- The mouse will automatically switch to wired mode and begin charging if necessary.
3.5 Compatible Systems and Equipment
The ATK U2 Series mouse is compatible with Windows and macOS operating systems. It can be used with various equipment including laptops, tablet PCs, and other devices supporting USB or Bluetooth interfaces.
4. Instruccions de funcionament
4.1 Buttons and Scroll Wheel
The mouse features 4 programmable buttons and 1 scroll wheel. The main buttons utilize either OMRON optical micro-switches or ATK custom-tuned optical micro-switches, offering a crisp and rapid response. Some models may feature Huan Nuo Ice Poison Dot mechanical micro-switches for a softer, more elastic feel with high-frequency clicks. Side buttons typically use TTC switches.

Comparison of optical and mechanical micro-switches.
4.2 Ajust de DPI
The mouse is equipped with advanced PAW3950 or PAW3950Ultra flagship sensors, offering a wide DPI adjustment range for precise control. Specific DPI ranges are detailed in the specifications section.
4.3 Taxa de sondeig
The ATK U2 Series supports polling rates up to 8000Hz in wired/wireless dual mode, providing an extremely fast response time. Lower polling rates like 1000Hz are also available.

Recommended PC specifications for optimal 8KHz polling rate performance.
Minimum PC Requirements for 8000Hz Polling Rate:
- CPU: Intel i7 9700K o superior, o AMD R7 3700X o superior
- Visualització: Refresh rate 240Hz or above
- Targeta gràfica: NVIDIA GTX 1080 o superior, o AMD RX 5700 o superior
- Memòria: 16 GB o superior
4.4 ATK HUB Software
The ATK U2 mouse supports the ATK HUB web-based driver software for efficient and fast customization across multiple systems. This software allows you to configure button assignments, DPI settings, polling rates, and other performance parameters.

ATK HUB web-based driver interface for customization.
Visita WWW.ATK.PRO for driver downloads and service information.
5. Manteniment
5.1 Neteja
The ATK U2 mouse features an ice-sensitive coating that is delicate, stain-resistant, and easy to clean. Use a soft, dry cloth to wipe the mouse. For stubborn stains, a slightly damp cloth with mild soap can be used, ensuring no liquid enters the mouse's internal components. Avoid harsh chemicals or abrasive materials.

The ice-sensitive coating ensures durability and easy maintenance.
5.2 Cura de la bateria
The mouse is equipped with either a 500mAh or 800mAh battery, depending on the model. To prolong battery life:
- Eviteu descarregar completament la bateria amb freqüència.
- Charge the mouse using the provided USB cable.
- If not in use for an extended period, store the mouse with a partial charge (around 50%).

Long-lasting battery life, with 800mAh capacity for U2 Plus, U2 ProMax, and U2 Master Edition.
6. Solució De Problemes
6.1 Problemes de connectivitat
- Sense fil 2.4G: Ensure the USB receiver is securely plugged in and the mouse is turned on and in 2.4G mode. Try a different USB port.
- Bluetooth: Ensure Bluetooth is enabled on your device and the mouse is in pairing mode. Remove previous pairings and re-pair if necessary.
- Amb cable: Comproveu la connexió del cable USB als dos extrems. Proveu un port o cable USB diferent.
6.2 Problemes de rendiment (retard, tartamudeig)
- Interferència: Move the mouse closer to the receiver (for 2.4G wireless) or your Bluetooth device. Avoid using the mouse near other wireless devices that might cause interference.
- Superfície: Ensure you are using the mouse on a suitable mouse pad or a clean, non-reflective surface.
- Taxa de sondeig de 8000 Hz: If experiencing issues with 8000Hz, verify your computer meets the minimum specifications listed in Section 4.3. Lowering the polling rate to 1000Hz might resolve performance issues on less powerful systems.
- Conductors: Ensure you have the latest drivers installed via the ATK HUB software.
6.3 El ratolí no respon
- Bateria: Check the battery level and charge the mouse if it's low.
- Cicle d'alimentació: Apagueu el ratolí i torneu-lo a engegar.
- Restablir: Refer to the ATK HUB software or user manual for any specific reset procedures.
7. Especificacions
The ATK U2 Series offers various models with distinct specifications. Below is a summary of key features and a detailed table of product parameters.

Detailed product parameters for the ATK U2 Series.
| Especificació | U2 SE | U2 | U2 Plus | U2 Pro | U2 ProMax | Ultra U2 | U2 Master Edition |
|---|---|---|---|---|---|---|---|
| Color | Black / White (Specific color variants available per model) | ||||||
| Dimensions (L x A x A) | 123.7mm x 64.6mm x 39.1mm (Medium/Large Hand) | ||||||
| Revestiment | Delicate ice-sensitive coating, anti-slip, easy to clean | ||||||
| Sensor | Xhero AI | PAW3395SE | PAW3395Ultra | PAW3950 | PAW3950 | PAW3950 | PAW3950Ultra |
| Xip de control principal | Shanghai Star Flash Main Control | Shanghai Star Flash Main Control | Original Flagship Main Control | Shanghai Broadcom Custom Chip | Shanghai Broadcom Custom Chip | Nòrdic52840 | Nòrdic52840 |
| Tecnologia de transmissió | Second Generation Smart Speed Wireless, ATK Competitive Firmware | Second Generation Smart Speed Wireless, ATK Competitive Firmware | Second Generation Smart Speed Wireless, ATK Competitive Firmware MAX | Second Generation Smart Speed Wireless, ATK Competitive Firmware MAX | Second Generation Smart Speed Wireless, ATK Competitive Firmware MAX | Second Generation Smart Speed Wireless, ATK Competitive Firmware MAX | Second Generation Smart Speed Wireless, ATK Competitive Firmware MAX |
| Taxa de votació | 1K amb cable / 1K sense fil | 1K amb cable / 1K sense fil | 1K amb cable / 8K sense fil | Wired / Wireless Dual 8K | Wired / Wireless Dual 8K | Wired / Wireless Dual 8K | Wired / Wireless Dual 8K |
| Bateria | 500 mAh | 500 mAh | 800 mAh | 500 mAh | 800 mAh | 500 mAh | 800 mAh |
| Battery Life (1K Polling Rate) | 150 hours (Star Flash connection) | 150 hours (Star Flash connection) | 200 hours (1000Hz) | 150 hours (1000Hz) | 200 hours (1000Hz) | 150 hours (1000Hz) | 240 hours (1000Hz) |
| Pes | 49 g ± 2 g | 49 g ± 2 g | 55 g ± 2 g | 55 g ± 2 g | 44 g ± 2 g | 49 g ± 2 g | 49 g ± 2 g |
| Botons principals | Huan Nuo Lan Tu Red Dot v2 | Huan Nuo Lan Tu Red Dot v2 | Huan Nuo Ice Poison Dot | ATK Custom Tuned Optical Micro-switch | ATK Custom Tuned Optical Micro-switch | Huan Nuo Ice Poison Dot | ATK Custom Tuned Optical Micro-switch |
| Botons laterals | TTC | ||||||
7.1 Sensor Specifications (PAW3950 vs. PAW3950Ultra)

Detailed sensor specifications for PAW3950 and PAW3950Ultra.
| Característica | PAW3950 | PAW3950Ultra |
|---|---|---|
| Rang d'ajust de DPI | 50-30000 (Overclockable to 36000) | 10-30000 (Overclockable to 42000) |
| Velocitat de seguiment | 750 IPS | 750 IPS |
| Acceleració | 50G | 50G |
| Alçada del nivell de detall (LOD) | 0.7/1.0/2.0 mm | 0.7mm~1.7mm (0.1mm precision, 11 adjustable levels) |
8. Garantia i Suport
8.1 Període de garantia
The ATK U2 Series mouse comes with a 12-month defects liability period, ensuring coverage for manufacturing defects.
8.2 Servei postvenda
After-sale service is provided under the 'Shop Three Guarantees' policy. For specific details regarding returns, repairs, or replacements, please contact your retailer or refer to the official ATK weblloc.
8.3 Driver and Software Support
For the latest drivers, firmware updates, and software support, please visit the official ATK weblloc:
9. Consells d'usuari
- Ergonomia: The mouse features a bilateral waist design and is suitable for various hand types, supporting both palm and claw grips. Experiment with different grips to find what is most comfortable for you during extended use.
- Personalització: Utilize the ATK HUB software to fine-tune DPI settings, button assignments, and polling rates to match your personal preferences and game requirements.
- Rendiment òptim: For competitive gaming, consider using the wired connection or 2.4G wireless with the appropriate receiver for the lowest latency and highest polling rates. Ensure your PC meets the recommended specifications for 8000Hz polling rate.
- Mode de viatge: For portability, the 2.4G receiver can often be stored within the mouse body. Bluetooth mode is convenient for connecting to laptops or tablets without needing a dongle.

Ergonomic design supports various hand grips for comfortable use.
10. Notes importants
- Product images are for display purposes only; the actual product may vary slightly.
- All theoretical data, such as weight and battery life, are based on laboratory measurements. Actual usage may vary due to individual use habits, environmental factors, and battery cycle times.
- The 44g weight measurement refers to the mouse body only and does not include the receiver or foot pads. A measurement error of ±2g may exist.

Important disclaimers regarding product representation and performance data.





