The device appears in Windows as a webcam without needing to install any additional drivers or other software. According to the included brochure, it captures video at the following resolutions: 720×480 (60p), 720×576 (50p), 1280×720 (50p), 1280×720 (60p), 1920×1080 (50i), 1920×1080 (60i), 1920×1080 (24p), 1920×1080 (25p), 1920×1080 (30p), 1920×1080 (50p), 1920×1080 (50p). When I tried connecting it between a desktop computer and a monitor with a resolution of 2560×1440 (WQHD), the maximum resolution available for the monitor was limited to 1920×1080 (as shown in the attached screenshot). I'm also attaching the test result from webcamtests dot com. The device does what it's supposed to, but the “4K” label on the casing is a marketing gimmick.
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