This small and compact card fulfills features for modern SATA III hard drives. These features include: Hot-plug, Hot-swap, NCQ, and Port Multiplier FIS switching all part of the newest Marvell 88SE9120 Chipset.Host Interface: PCI Express x1Data Transfer Rate: 6 Gbit/sDrive Type: Serial ATA/600Ports: 2 x Serial ATA/600 Serial ATA ExternalForm Factor: Low-profile Plug-in CardPackage Contents: 2 eSATA Ports PCI-e Controller Card Driver CD User Manual Low Profile Bracket Green Compliant: YesGreen Compliance Certificate/Authority: WEEEPackage Contents 2 eSATA Ports PCI-e Controller Card Driver CD User Manual Low Profile Bracket