Meet the Vault (FW4B): a mini fanless PC with 4 network ports, quad-core processor, and encryption support that can be used as your firewall. It supports up to 8GB of DDR3L-1600 RAM and 1TB mSATA storage drive.
More gadgets like this: here
You can run open source software on this without a hassle. The machine runs silently, which is a plus.
Disclaimer: *Our articles may contain affiliate links. Please read our disclaimer on how we fund this site. As an Amazon Associate, we earn from qualifying purchases.
