It has Marvell SAS controllers, but how about this? P9A-I/C2750/SAS/4L - SpecificationsThanks for the insight @Patrick, it's much appreciated.
I looked at that board but only 2 of the 6 SATA ports are 6Gbps. If I'm making an all SSD storage server I don't want my storage interfaces being the bottleneck. I do think the Avaton is a great option for my needs I just can't seem to find one with the storage interfaces I want while also allowing me the ability to upgrade to 10GbE.
C2750 with a total of 18 ports (2 sata or 1 sata/1 M.2, 16 SAS), plus a PCI-E 2.0 x4 slot for 10Gb. Each of the 2 SAS chips are connected to the SOC via PCI-E 2.0 x4 lanes, which is roughly 2GB of bandwidth per 8 drives.