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ATK U2 Ultra – Specification
atk Mouse SKU: ATK-U2-ULTRA

ATK U2 Ultra – Specification

Available 10.0/10Outstanding
  • Sensor PixArt PAW3950 Ultra
  • DPI 100 – 30,000 DPI
  • Polling Rate 125–8000 Hz
  • Weight 44 ± 2 g
  • Connection Wireless 2.4 GHz / Wired USB-C
  • Grip Style Palm, Claw
View Full Specs

ATK U2 Ultra

ATK U2 Ultra is a ultralight mouse built around the PixArt PAW3950 Ultra sensor with Wireless 2.4 GHz / Wired USB-C. Its listed 44 ± 2 g weight and 123.7 mm × 64.6 mm × 39.1 mm dimensions make the Palm, Claw guidance central to the buying decision. The 100 – 30,000 DPI and 125–8000 Hz figures describe its configuration ceiling; they do not replace measured latency or comfort testing.

Pros & Cons

Pros
  • 44 ± 2 g listed weight (ultralight class)
  • PixArt PAW3950 Ultra sensor is identified, making comparison easier
  • 125–8000 Hz polling option for compatible high-refresh setups
  • Published battery guidance: Up to 250 Hours
Cons
  • Fit is personal; compare 123.7 mm × 64.6 mm × 39.1 mm with a mouse you already use
  • The highest polling mode can increase CPU and battery demand

Specifications

Basic Information

Brand ATK
Model Name U2 Ultra
Release Year 2025
Category Mouse
Grip Style Palm, Claw
Ergonomics Right-handed
Design Type Ultra-light
Color Options Black, White, Pink

Dimensions & Weight

Length 123.7 mm
Width 64.6 mm
Height 39.1 mm
Weight 44 ± 2 g
Material Nano Coating (Ice-Feel)
Feet Material 100% Virgin PTFE

Sensor & Performance

Sensor Type Optical
Sensor Model PixArt PAW3950 Ultra
Resolution (DPI) 100 – 30,000 DPI
Tracking Accuracy Flawless (Zero smoothing)
Polling Rate 125–8000 Hz
Max Tracking Speed 750 IPS
Max Acceleration 70 G
Lift-off Distance 1 mm (adjustable)
Click Latency <1 ms
Onboard Memory Yes

Switches & Buttons

Switch Type ATK-tuned Omron Optical
Durability 80 Million clicks
Total Buttons 6
Scroll Wheel TTC Gold Dustproof
Side Buttons Customizable
Middle Click Yes
Macro Support Yes

Connectivity

Connection Type Wireless 2.4 GHz / Wired USB-C
Cable Length 1.8 m
Cable Type Paracord USB-C
Wireless Receiver Nordic Nano Dongle
Charging Port USB-C
Compatibility Windows, macOS

Compatibility

Software ATK Web/Desktop Client
System Support Windows 10/11, macOS 11+
Interface Required USB-A / USB-C

Battery & Charging

Battery Type 500 mAh Lithium Polymer
Battery Life Up to 250 Hours
Charging Method USB-C Wired
Charge Time Approx. 1.5 hours

Smart Features

Smart Features 8000 Hz Motion Sync
Low-latency Nordic MCU
Custom RGB
Firmware updates

✋ Shape & Grip Guide — Is This Mouse Right for Your Hand?

ShapeRight-handed and Ultra-light
Size123.7 mm × 64.6 mm × 39.1 mm
Weight Feel44 ± 2 g (ultralight)
Best GripsPalm, Claw

ATK U2 Ultra measures 123.7 mm × 64.6 mm × 39.1 mm and is listed at 44 ± 2 g. The published grip guidance is Palm, Claw. Use those measurements against a familiar mouse; grip labels alone cannot predict comfort.

Good fit if

  • You already use Palm, Claw on a similarly sized shell.
  • You want a ultralight mouse.
  • The Right-handed design matches your preferred hand position.

Consider another shape if

  • You cannot compare the dimensions with a mouse you already find comfortable.
  • You need a large MMO or productivity button grid.

🎯 Sensor & Tracking Quality — What You're Actually Getting

Sensor
PixArt PAW3950 Ultra
The sensor model is the most useful identifier when comparing tracking hardware.
DPI Range
100 – 30,000 DPI
Maximum DPI is an adjustment range, not a promise of better aim.
Polling Rate
125–8000 Hz
The top mode needs a capable USB/receiver and can use more system resources.
Lift-off Distance
1 mm (adjustable)
Lift-off behaviour can vary with pad surface and calibration.
Tracking
750 IPS and 70 G

PixArt PAW3950 Ultra is the listed sensor. 100 – 30,000 DPI sets the available sensitivity ceiling. 125–8000 Hz is the stated polling range. The useful setting is the one that remains stable on your PC, receiver and mouse pad—not necessarily the maximum number.

🧩 Clicks, Buttons & Build Quality

Switches
ATK-tuned Omron Optical
Switch specifications identify the mechanism; sound and feel still require hands-on judgment.
Buttons
6
Check placement as well as the total count.
Scroll Wheel
TTC Gold Dustproof
Encoder type does not fully describe tactility or noise.
Mouse Feet
100% Virgin PTFE
Glide also depends on the pad surface.
Shell / Body
Nano Coating (Ice-Feel)
Material and construction affect mass and rigidity; coating feel is not inferred.

Switches: ATK-tuned Omron Optical. buttons: 6. wheel: TTC Gold Dustproof. body: Nano Coating (Ice-Feel). The listed feet material is 100% Virgin PTFE. Treat feel, noise and long-term durability as untested unless a hands-on test is explicitly cited.

🔋 Wireless & Battery — What to Expect

Connection
Wireless 2.4 GHz / Wired USB-C
Use wired or 2.4 GHz for latency-sensitive play; Bluetooth prioritizes convenience.
Battery Life
Up to 250 Hours
Runtime varies with polling rate, lighting, sleep settings and battery age.
Charging
USB-C Wired
Confirm cable and charger compatibility in the regional package.
Receiver / Dongle
Nordic Nano Dongle
Use the intended receiver for the advertised wireless polling modes.

ATK U2 Ultra supports Wireless 2.4 GHz / Wired USB-C. The published runtime is Up to 250 Hours. Expect the highest polling setting to trade some efficiency for more frequent updates.

👤 Who Should Buy This Mouse?

Buy if

  • You specifically want the PixArt PAW3950 Ultra platform.
  • A 44 ± 2 g mouse suits your handling preference.
  • Wireless 2.4 GHz / Wired USB-C matches the devices you use.
  • Your grip and hand size match the Palm, Claw guidance.

Skip if

  • The 123.7 mm × 64.6 mm × 39.1 mm shell is a poor match for your hand.
  • You do not want the battery/CPU trade-off of very high polling.

🛒 Practical Buying Advice

Before Buying

Compare 123.7 mm × 64.6 mm × 39.1 mm, 44 ± 2 g, button placement and grip guidance with a mouse you already know.

Value Check

Judge value at the current regional price against mice with the same PixArt PAW3950 Ultra, connection modes and warranty.

Best Configuration

Start at 1000 Hz and raise polling only if 125–8000 Hz remains stable on your system. Set DPI for control rather than chasing the maximum figure.

What to Verify

Confirm the exact regional model, package contents, receiver, supported software and warranty before checkout.

Buying Call

Choose ATK U2 Ultra if its ultralight weight, shape, connection options match your setup; otherwise prioritize fit over headline sensor numbers.

🏁 Final Verdict

ATK U2 Ultra: the fit matters more than the maximum DPI

ATK U2 Ultra's clearest strengths on paper are 44 ± 2 g weight, PixArt PAW3950 Ultra, 125–8000 Hz and Wireless 2.4 GHz / Wired USB-C. The deciding risk is fit: confirm the dimensions, grip style and software support before treating the specification sheet as a recommendation.

Weight: 44 ± 2 gSensor: PixArt PAW3950 UltraPolling: 125–8000 HzConnection: Wireless 2.4 GHz / Wired USB-C

💻 Compatibility & Software Notes

Software
ATK Web/Desktop Client
Supported OS
Windows 10/11, macOS 11+
Profiles / Memory
Yes

Configuration support is listed as ATK Web/Desktop Client on Windows 10/11, macOS 11+. Features and operating-system support can change with firmware, so use the current manufacturer download page.

✅ Source / Verification Notes

✓

This page distinguishes published specifications from hands-on test results.

✓

Shape comfort, click feel, wireless stability and battery life can vary by user, firmware and test method.

❓ Frequently Asked Questions

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