So... The only download I have for the I350-T4 card for Win 10 x64 is here: Download Network Adapter Driver for Windows® 10
I downloaded it, right after installing the dreaded Win 10 v1511 threshold update. It is PROWinx64.exe and it installs in a similar fashion as before, but teaming is disabled, with pretty much the same note as on the download page: doesn't work on Win 10. I do not see a way to create a team to test if it will function and my previously created and working teaming for this card on Win 10 was destroyed by the threshold update. I do not see any other driver available anywhere else. I am more than willing to try something, if you know where I can get it. In response to my support ticket with Intel Networking, the answer was to blame Windows 10, with a suggestion to contact Microsoft