|You can make your own if you want. Either a free virtual machine on your system can do that. See things like untangle linux and a few others. |
You can get a cheap atom system to do that also, run untangle linux or other firewall.
The only good hardware ones tend to cost a bit of money. They tend to be faster and in some cases offer free updates or such.
None of them work very well if they aren't set up properly.
A Pit Bull is like a gun you can pet. And there is no safety on it.