ARC-1264il models couple 12 or 16 SATAIII peripherals to the 2.0 version of the PCIe bus as a host RAID controller. The 12/16 ports target high-availability and capacity-oriented applications that require large capacities such as security systems, surveillance, multimedia production, data capturing, mail servers, and database systems. They support direct-attached 12 or 16 internal 6 Gbps SATA ports via 3/4 SFF-8087 connectors.