Clearvision DVR Series Cards For PC?

Has anyone had experience with Clearvision DVR cards for PCs? Example: Model CV-DVR1480-32R

I can't even seem to find this item on the internet, though a vendor is recommending it to me. It would be used in a commercial industrial setting at 30fps at a high activity level.

A similar item is available but under a different manufacture and part number:

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