The problem with the Wyse 5070 is that the 2nd NIC is a unicorn. I think I'm the only person on this forum that has managed to get ahold of one?
Yeah, that's why I mentioned a few 3rd party NICs on the forum discussing the 5070 - one of them is a Commell M2-210, which is an Intel i217 based NIC - there are
plans on Thingaverse on how to make a bracket that would work on one with a 5070, but they are kinda expensive, though. The 5070 is "kind of" my baby since I wrote the resource guide on a few of them, and I am eternally delaying my big fat formal writeup for it (even though I am sure there are tons of people out there using them already as ghettominimicro machines, and yes
@Patrick, I am inventing that term to describe reusing thin clients as servers). Can't wait to see it replaced, though, preferably with something Ryzen V2000 embedded.
I would steer people towards the t640 if you want a cheap upgradeable machine that can do dual NICs (one Realtek, one Broadcom, not a winning combination for ESXi 7.0 but probably fine for pfsense), or if you want a cheap one-NIC low power node with a single DDR4 slot, look for a Lenovo m600 thin client (with Win10 IoT if you value Win10), or wait for the HP t540 to come out and see how the secondary market price it.