The LSI SAS 9212-4i4e host bus adapter (HBA) provides the greatest available throughput to internal server and external storage arrays through high-speed 6Gb/s ports, supporting up to 256 SATA and SAS physical devices. It bolsters server storage RAID and non-RAID enclosures by pairing an x8 PCI Express 2.0 host interface with one external x4 SFF8088 Mini-SAS connector and four internal x1 SATA connectors.