PDAF Focus 1/2.5 Inch Sensor 4K Webcam Touch Control Desktop PC Cam 874L

This 4K webcam is engineered with an advanced 1/2.5 inch optical image sensor, providing exceptional light sensitivity for desktop environments. The internal hardware supports a maximum effective pixel resolution of 4000(H) multiplied by 3000(V), allowing the desktop PC cam to capture highly detailed visual data. Video output is steadily maintained at 4K resolution at 30 frames per second, with an alternative 1080P output option operating at 60 frames per second for high-motion capture. The sensor utilizes a pixel architecture measuring exactly 1.4 micrometers by 1.4 micrometers to ensure accurate light processing. Raw visual data is efficiently encoded using industry-standard YUY2 and MJPEG formats.

The optical framework of this computer camera features a specialized 6P glass lens composition. This lens array incorporates a large F1.7 aperture, maximizing light transmission to the sensor and significantly improving image quality in dimly lit rooms. The angular field of view is factory-calibrated to 77 degrees, providing a balanced framing area without severe edge distortion. For focusing, the USB web camera utilizes Phase Detection Auto Focus (PDAF) technology. This advanced PDAF mechanism allows the camera to calculate depth instantly and lock focus on moving subjects with zero mechanical hunting.

Beyond standard optical performance, this video calling camera integrates innovative touch control features. The left side of the camera chassis features a touch sensor for brightness adjustment, allowing users to cycle through exposure levels with a simple tap. The right side incorporates a separate touch button dedicated to a hardware zoom function, enabling progressive image magnification without requiring desktop software. Audio recording is managed by built-in 2 channel stereo noise-canceling microphones, which filter ambient room noise. For physical security, the camera includes a premium magnetic privacy cover that attaches securely over the lens when not in use.

Connectivity is established through a standard USB 2.0 interface, ensuring broad compatibility with various computing hardware. The streaming PC camera operates on a DC 5V power supply and requires a highly efficient maximum working current of just 190mA. A blue indicator light illuminates during touch operations, while a central indicator confirms when the camera is actively transmitting an image.

The physical structure of the 874L webcam is designed for stability, measuring 74.9 millimeters in width and 46 millimeters in main body height. The device supports universal plug-and-play functionality across Windows 7, Windows 8, Windows 10, Windows 11, macOS, Linux, Android, and Ubuntu systems. The internal electronics are rated to operate safely within an ambient temperature range of 0 to 60 degrees Celsius. Recommended storage temperatures range broadly from -30 to 85 degrees Celsius.