I did not get Mini-ITX mainboard this time. Instead I got Micro-ATX, I needed more PCI slots for more network cards.
I can confirm, that Gigabyte GA-N3050M-D3P is working fine with zeroshell 3.7.1:
EDIT: ASRock Q1900M Pro3 also seems to work fine with 3.7.1:
Using Intel Quad NIC-s on it, both PCI (100Mbit) and PCI-E(gigabit).
PCI-E Quad Intel NIC is Intel I350-T4, I strongly recommend, for 40 USD it is a bargain, using those in several routers: