Recommended Minimum Hardware:
These are the specifications for a hardy home media server or small office file share. At this point, your FreeNAS device will have the resources to run third party services and provide respectable performance.
The iXsystems FreeNAS Mini Storage Device fulfills these specifications.
Multicore 64-bit processor
16GB Boot Drive (USB Flash Drive suffices)
16GB (ECC Recommended)
At least 2 direct attached disks (Hardware RAID strongly discouraged)
For best results, see FreeBSD Hardware Compatibility List for Supported Disk Controllers