[Mashiro]

@AmirGT

Well, yes. You could use the one you linked to. I rather mean simply pure USB 3.0 network adapters like this one though: https://www.amazon.com/dp/B00MYTSN18/

The USB-C port at the Raspberry Pi 4 cannot be used for any dongles or similar. It is purely used to provide power to the Raspberry Pi. So you need a USB 3.0 device but not USB-C.

I would do a bit research though before buying such adapters because you need to be sure that the chips inside these are supported by the OS on the Raspberry Pi or else the adapter probably won't be even detected and won't work.


Well, the Raspberry Pi is still a physical machine. So no VM. However yes, you can easily reflash the µSD card with a fresh base image. That way you restore the small machine to a good state within a matter of minutes . I use Samsung µSD cards inside my Raspberry Pis and the write speed is basically insane compared to most other cards. Flashing a fresh copy of Raspbian Lite takes less than two minutes and the RPi is ready to go.

The RPi 4 together with a second network card in form of a USB 3.0 network adapter will work well as a small pfSense box for testing and such. I wouldn't use it in production though because depending on the amount of traffic and all the features that you wil use... the RPi will collapse because it lacks computing power.