I am building my personal private cloud. I am considering using second hand dell optiplexes as worker nodes, but they only have 1 NIC and I’d need a contraption like this for my redundant network.
Then this wish came to my mind. Theoretically, such a one box solution could be faster than gigabit too.
I’m going to go a different route than your question. If you have a spare m.2 slot and room in your PC, you can install a m.2 network adapter. I recently installed a m.2 to 2.5gbe adapters in a Dell 3060 SFF as a proof of concept at home for getting Proxmox ceph cluster working over 2.5gbe.
This is the way to do it for minipcs in my experience. As long as for some reason the box you’re using only allows for a whitelist of wlan cards to be used, but I haven’t run into any that does that yet.
Oh that’s nice. I have a second m2 slot in my TH80. Putting a stronger network card there could be a cool future upgrade