Something that is using the igb or em driver might be the best option to build your own rig. If TurboBoost, Hypertrading, AES-NI and/or QAT is offered this days it
would be nice.
Supermicro X12STL-IF is using something to 95 TDP watt
and that is much electric power to pay for and no Intel QAT
~35W TDP Intel QAT, 10GBe, AES-NI SuperServer E300-9D-8CN8TP
~80W TDP, Intel QAT, 10 GBe, AES-NI, HT, TurboBoost