Limited to VGA (640x480). It looks grainy on 4K monitors.
Plug the camera in after the driver software finishes installing. 🛠️ Quick Specs Interface: USB 2.0 Sensor: CMOS 0.3MP Frame Rate: 30 fps Extra: Snapshot button for quick photos. A4 Tech Pk 635M Kamera Driver Vista
Look for the "A4Tech PC Camera Driver" (v1.0 or 1.1). Limited to VGA (640x480)