ok for freenas if you do not transcode with plex
Agree. I have the Haswell version of this proc (G3520 IIRC), and it purrs along just fine, but I don't do Plex transcoding or other horsepower required applications. It also lacks AES and VT-d for those interested in encrypting your pool or virtualization.
Mine is in a Fractal Node 304, Asrock e3c224d2i, with 16gb DDR3 ECC, and 6x 3tb 7200rpm Seagate drives.
Scrubs take about 2.5 hrs with 5TiB of data on the pool.
EDIT: Wow, I didn't look at the spec sheet for the Kaby Lake version until just now. This one has BOTH VT-d and AES-NI! If the platform wasn't so expensive an upgrade would be nice... I'm still considering E5 v1 gear for my next build, consolidating storage with the main machine.