I've read though the FreeNAS Community Hardware Guide 2016-10 Edition (Revision 1e) and if I understand what
I've read, to support SATA3 (6G) Hard drives I need an LSI SAS2008 based HBA, and whatever I buy must be
crossflashed.
In the guide it mentions the LSI SAS 9211, SAS 9240, SAS 9207...