In the end I went with Dell Wyse 5070 Extended.
I also put Dell 09YD6K 4-Port 1 Gbps Ethernet NIC inside.
That is Intel i350-T4 card.
I had problems with this card cause when I put it inside, dell was not posting anymore.
It signaled memory problem.
So if anyone has similar problem with i350 card, solution is to block pins B5 and B6 with electric tape.
After that it posted and everything works ok.
Solution was found here: Modding a Dell Perc 6 / Dell H310 / Dell H710 (other LSI 1078 or 9223-8i based) SAS Raidcontroller.
In comments on that blog post, someone mentioned i350 NIC.