I found this while looking for a replacement for an old first-generation FitPC device that I used to use as a network firewall.  The FitPC still runs, but for the last few years, I've needed something with gigabit ethernet ports, which it doesn't have.This device runs my pfSense firewall just great, and (unlike the old FitPC) has enough "left over" CPU power to comfortably run OpenVPN as well.