These cards use the same chip as the Pyle PLInk2, which is a known high quality 4K30 NV12 chip. They are PCIe Gen 2 x1, and capture NV12 and YUY2. I didn't use them a lot. The have RGB LED in them.
If you need HDR10 4:2:0 P010, I do have one Avermedia GC571 PCIe x1 Gen 3 for $100. I also have two Camlink Pro PCIe x1 Gen 2 quad HDMI NV12 capture cards for $200 each. I am replacing them with Blackmagic Decklink Quad HDMI HDR10 4:2:2 P012) capture card, which is PCIe x8 Gen 3. You have to make sure you have an x4/x8 slot on your mobo, they might be x16 but they are almost always x1 or x4, that can really confuse people