4K USB Computer Camera 12MP Sensor Magnetic Privacy Cover Cam 874L

This 4K USB computer camera incorporates an advanced 1/2.5 inch optical image sensor to ensure professional-grade visual capture. The hardware is strictly calibrated to deliver a maximum effective pixel matrix of 4000(H) multiplied by 3000(V). Video output runs smoothly at a 4K resolution at 30 frames per second, alongside a 1080P alternative setting at 60 frames per second. The high-density pixel size measures precisely 1.4 μm by 1.4 μm. For seamless software integration, the camera encodes raw visual data in standard YUY2 and MJPEG formats. The sensor hardware also operates with a tested dynamic range of 70db.

The optical path relies on a dedicated 6-piece (6P) glass lens structural assembly. This lens system is combined with an F1.7 large aperture, allowing the PC web camera to maintain bright and sharp images in suboptimal lighting conditions. The camera field of view is factory-set to a 77-degree angle with a ±1-degree tolerance. Focusing is entirely managed by Phase Detection Auto Focus (PDAF). This PDAF module allows the desktop video camera to calculate subject distance rapidly, providing continuous sharpness without manual adjustments.

A key differentiating feature of this 4K webcam is its dual-side touch interface. The left touch key provides users with loop-based brightness adjustments. The right touch key is mapped to a hardware zoom function, allowing progressive image magnification. Each touch action is verified by a blue indicator light. For audio recording, the computer camera relies on integrated 2 channel stereo noise-canceling microphones. A custom-fitted magnetic privacy cover is included to physically block the lens when not in use.

Connectivity is handled by a standard USB 2.0 data interface, which provides adequate bandwidth for stable 4K video transmission. The USB video camera operates efficiently on a DC 5V power supply, drawing a remarkably low maximum working current of only 190mA. The central panel features a dedicated indicator light that confirms when the device is actively outputting an image.

The main body chassis of the 874L camera measures 74.9 millimeters in total width and 46 millimeters in height. The device supports universal plug-and-play operation across Windows 7, Windows 8, Windows 10, Windows 11, macOS, Linux, Android, and Ubuntu systems. The internal hardware components are rated to function consistently within a working temperature range of 0 to 60 degrees Celsius, and storage specifications require environments between -30 and 85 degrees Celsius.