I’m surprised by the price of 40Gbit infiniband gear. Might was well use it instead of 10Gbit (no switch, just point to point).
Anybody know which ones have Windows drivers? I’m guessing most don’t have Windows drivers and that’s why they’re cheap. Gaming PC will be on windows and that’s the end of that discussion; but, I will try to commit to Linux again on my other PC.
The 3, 3p and 4 are really old … there’s limited support for modern versions of windows OS. If you’re running server 2008 / 2012 you should be good with a 3.