Neewer 4 Channel Video Audio Capture Adapter CCTV DVR USB 2.0

In my business I have used almost every type of USB DVR and many PCI dvr cards. This is the worst I've bought. I was dubious when I ordered it because it's so cheap, but I figured great if it works. Unfortunately it's a very low quality that barely works. It does work, but just barely. Bad quality, problems with motion detection.

I just tossed it in the trash.

It was $22/each, most are $45-$80/each. There is a reason.