It was April 2017 when A4Tech released the PK-635E.
Only 640 X 480 Pixels Video Resolution
This webcam has a maximum video resolution of 640 x 480 pixels, which is the most frequently found maximum video resolution on webcams of a comparable age and spec to it.
What does "maximum video resolution" mean?LessChartHide ChartEdit
Manufacturer Part Numbers
a4 tech a4tech, a4 tech pk635e
A4Tech PK-635E Review Sources
To prepare this A4Tech PK-635E review we compared this webcam to 281 other models. For each webcam that we compared, we collated thousands of pieces of information including technical specs, reviews, and prices. In total we analysed 41,012 product attributes, 14,021 webcam reviews and 700,200 historical webcam prices from 0 webcam retailers. We then picked out the standout features of this webcam compared to the other models as well as any areas where this webcam is lacking.