Actually, it specifically DOES, as Karenjoly posted previously.
Storage Interface
1 x M.2 connector (Socket 3, M key, type 2242/2260/2280/22110 SATA and
PCIe 3.0 x4 (Note 2)/x2 SSD support) (M2A_SOCKET)
1 x M.2 connector (Socket 3, M key, type 2242/2260/2280 PCIe 2.0 x4/x2 SSD
support) (M2B_SOCKET)
6 x SATA 6Gb/s connectors
Support for RAID 0, RAID 1, and RAID 10