921MAX 4K Webcam PDAF Autofocus 1/2.8 Inch Sensor Desktop PC Camera

This 4K webcam is constructed utilizing an advanced 1/2.8 inch optical image sensor. The internal sensor architecture is precisely calibrated to support a maximum effective pixel resolution of 3840(H) multiplied by 2160(V). This hardware configuration enables the desktop PC camera to maintain a continuous 4K video stream at 30 frames per second. For scenarios requiring higher refresh rates, the device also supports a 1080P output mode operating at 60 frames per second. The image sensor features a physical pixel size measuring 1.4 micrometers by 1.4 micrometers. Visual data is efficiently processed and encoded natively in standard YUY2 and MJPEG formats. The optical system maintains a tested dynamic range of 70db.

The optical path of this computer camera features a specialized 6-element (6P) glass lens composition. This lens array incorporates an F2.0 aperture and a focal length of 4.25. The total optical length is strictly measured at 5.35. The angular field of view is factory-calibrated to 83 degrees, with a strict tolerance of ±1 degree. For focusing, the camera utilizes Phase Detection Auto Focus (PDAF) technology. This advanced PDAF mechanism allows the camera to calculate spatial depth instantly and lock focus without the mechanical hunting delays found in traditional setups.

Audio recording is managed by built-in 2 channel stereo noise-canceling microphones. For physical security, the camera chassis is equipped with a dedicated privacy cover. Connectivity is established through a standard USB 2.0 interface. The streaming PC camera operates on a DC 5V power supply and requires a maximum working current of 370mA. A working light indicator is integrated into the front panel to signal active data transmission. The device specifications state that it does not include a built-in beauty light component.

The physical structure of the 921MAX webcam is designed for monitor stability, measuring 85 millimeters in total width, 52.4 millimeters in main body height, and 62.87 millimeters in depth. The device supports universal plug-and-play functionality across Win 7, Win 8, Win 10, Win 11, macOS, Linux, Android, and Ubuntu systems.

The internal electronics are rated to operate safely within an ambient working temperature range of 0 to 60 degrees Celsius. Recommended storage temperatures are specified from -30 to 85 degrees Celsius. Environmental specifications dictate a relative humidity of less than or equal to 80 percent. During assembly and transportation, the hardware requires anti-static treatment and must not be subjected to heavy physical pressure.