areca ARC-1213-4X PCI-Express 2.0 x8 Low Profile SATA / SAS 4-Port PCIe 2.0 External SAS/SATA RAID Controllers

SAS builds on parallel SCSI by providing higher performance, improving data availability, and simplifying system design. The SAS interface supports both SAS disk drives for data-intensive applications and Serial ATA (SATA) drives for low-cost bulk storage of reference data. The ARC-1213-4x/ARC-1223-8x support directly attach 4/8 SAS ports via 1/2 external SFF-8088 connector. Each port on the SAS controllers supports SAS and/or SATA devices. Since there is no expander support on those boards, this can meet the customer inquiry SAS solution (using same enclosure) to replace SATA solution.