The Emulex 4 Gb Dual-Port for System x servers is a part of a family of a high-performance 4 Gb host bus adapter (HBA) solutions. The HBAs deliver exceptional performance with unsurpassed robustness, reliability, and performance for a wide spectrum of server, storage, and system area networks (SANs). These adapters broaden the IBM 4 Gb HBA portfolio for System x servers by offering four HBAs.