4K USB Webcam with PDAF Autofocus Stereo Microphone for Video Conference

The 921MAX 4K USB Webcam is designed for professional video conferencing, remote collaboration, online meetings, and business communication. Supporting Ultra HD 3840 × 2160 resolution at 30fps and Full HD 1080P at 60fps, the webcam delivers clear images and smooth video performance for modern office environments. Whether used in conference rooms, home offices, or hybrid workplaces, the camera provides stable visual quality suitable for long-duration meetings and professional presentations.

Featuring PDAF autofocus technology, the webcam rapidly locks focus on the subject and continuously adjusts to movement during video calls. The autofocus system helps maintain image sharpness without requiring manual adjustments, improving communication efficiency during presentations, webinars, and collaborative discussions. Combined with an 83° field of view, the webcam captures a comfortable framing angle for individuals or small teams while minimizing distortion.

Built with a precision 6P optical lens, the webcam delivers consistent image quality across various lighting environments. The F2.0 aperture allows sufficient light intake for balanced exposure, helping users maintain clear visuals during daytime meetings or indoor office communication. The webcam supports both MJPEG and YUY2 video output formats, ensuring compatibility with mainstream video conferencing software and streaming applications.

For audio performance, the webcam integrates dual stereo noise reduction microphones that help capture voices naturally while reducing ambient noise. This audio system improves speech clarity during online meetings, remote interviews, virtual training sessions, and customer presentations. The USB plug-and-play design eliminates complicated installation procedures, allowing users to connect the webcam quickly without installing additional drivers.

The 921MAX is compatible with Win 7/8/10/11, Mac OS, Linux, Android, and Ubuntu, making it suitable for desktop computers, laptops, and enterprise workstations. Operating from a stable DC 5V power supply with low power consumption, the webcam provides reliable performance for business collaboration, online education, live communication, and professional remote work environments.