APU.1D4

hardware

CPU: AMD T40E (2 x 1,0 GHz)
RAM: 4GB (DDR3-1066 DRAM)

Connector:  3 x Realtek RTL8111E Gigabit
            1 x mSATA 6 GBit/s
            1 x SATA 6 GBit/s
            2 x miniPCIe for mSATA
            1 x miniPCIe for gsm/umts/lte (optional)
            1 x miniPCIe for wifi (optional)
            2 x USB2.0 (internal)
            2 x USB2.0 (external)
            1 x RS232 (serial console)

BIOS: Coreboot Open Source System BIOS

Power Supply: 12V / 2.0A (5.5mm/2.5mm)

OPNsense

The APU.1D4 board is nice for a semi-professional firewall. To install OPNsense download the amd64 serial image type from the mirror of your choice.

$ screen /dev/ttyUSB0 115200
# login with root / opnsense
# press 8 for shell
/usr/local/etc/rc.installer