- Stock: In Stock
- Brand: Ruidian
- Model: U4S
Empower your Chromebook experience with the professional-grade USI
Active Stylus Pen.
Certified with the Universal Stylus Initiative (USI) protocol, this pen delivers an industry-leading 4096 levels of pressure sensitivity, allowing you to create varied line weights and subtle shading just like a real pencil on paper.
It is the perfect partner for students and artists using Chromebooks for intensive note-taking, drawing, and high-precision technical work.
Featuring advanced Palm Rejection technology, you can rest your hand naturally on the screen while you work, ensuring a focused and comfortable creative process.
The stylus is crafted for high-frequency daily use with a durable, replaceable tip and a balanced metal body that feels premium in hand.
With its instant "Plug and Play" connectivity and ultra-low latency, the USI Stylus provides the fluid, responsive performance required for modern digital education and professional creative workflows.
| Stylus Specs | |
| Compatibility | For USI 2.0 Stylus Pen |
| Protocol | USI Pen for USI 2.0 |
| Charging method | Type C charging |
| Pressure Sensitivity | 4096 Pressure Sensitivity: Yes |
| Charging Time | 60-80 mins |
| Battery Specs | 125mAh 5V/0.1A |
| Working Time | 8-10 Hours |
| Standby Time | 6 months |
| Palm Rejection | Yes |
| Tilt Bold / Sensitivity | - |
| Side Adsorption | Yes |
| Bluetooth Function | NO |
| Power Saving & Sleep Mode | Automatic power off in 3 minutes |
| Nib Diameter & Material | POM nib |
| Pen Body Material | Lithium-polymer |
| Turn On / Off | Side button |
| Offset Effect | NO Offset |
| Delay Effect | NO Delay |
| color | Black |
| Size / Dimensions | Φ1.5mm *Φ8.9mm *166mm |
| Net Weight | 13.2g |