Dell PowerEdge R740 - What is the fastest Network Interface Card you can install into an R740? I have found some conflicting information online and was hoping to get some clarification. This is the source I was using from Dell EMC:

https://www.dell.com/support/manuals/en-us/poweredge-r740/per740_techspecs_pub/nic-ports?guid=guid-8ba21af1-af17-4133-85d8-442d2c1fe4f9&lang=en-us

This list from dell only goes up to 25GbE, but there are other vendors that list up to 40GbE with QFSP+. What is the fastest possible speed the Dell PowerEdge R740 is capable of?

Thank you,