Multiport Gigabit Card?

[Der Geist der Maschine]

But to give you a pointer: You might be interested in looking at the NanoPI R2s if you want something with 2 NICs.

I found there also the NanoPI R1. It does not only include 2 ethernet ports but also wifi! That's actually what I really want. So far I have found that only on the OrangePI R1.

Both are not perfect as neither provide 1GB ethernet nor the 5GHz wifi band. One can't have everything. I still need to look up their support by vanilla linux and if they overhead under load.