What is the fastest and highest capacity M.2 nvme I can use on the PCIe x16_3 slot on Asus ROG x570E gaming via a M.2 PCIe adapter?

I am quite frustrated that the manual doesn't mention if the USB 3.2 Gen2 Type-C port C8 is gen 2 or gen 2x2. I need to know because I am planning on getting the TUF GAMING CAPTURE BOX-CU4K30 and I need to know if the USB C port on my motherboard can...

I am looking at getting a capture card and I have been looking at the Asus TUF GAMING CAPTURE BOX-CU4K30 but cannot find info anywhere of how it actually works.Most videos and guides I've looked at just go straight to the software side of it without ...

Are there any tools I can use to test my motherboard? I don't know of any.