Thanks, the photos weren't loading for me before, but are now.
The part number is
2108206210U or 2108206210


For what it's worth, the part number you linked from Amazon has been shown to work in a Crossfire, but it makes the fan speeds higher than the stock part. https://www.crossfireforum.org/forum...ere-get-2.html
Based on that, I'll spend the extra $20 and hopefully get the correct part.