Tips for getting cheap used x86-based firewall with full Gbit NAT (a PC Engines APU) if you are in the US - Hardware Questions and Recommendations - OpenWrt Forum
COM Express Basic Type 10 Module Supports Intel® Atom™ Single-Core Processor E3815 (5W), On-Board 2GB DDR3L, VGA, DDI, Gbe, SATA, USB 3.0 and HD Audio, RoHS: Buy Online at Best Price in