SATA 3Gbps Internal 2 Port Low-Profile PCI-Express Card. The IOGEAR eSATA 3Gbps Internal 2 Port Low-Profile PCI-Express Card adds 2 internal SATA ports to your desktop computer. It is great for users who want to add SATA connectivity to their computers but do not want to buy a whole new computer. The low profile design of this adapter makes it ideal for computers that have limited internal expansion space. This card is designed to work on the high-bandwidth PCI-Express interface effectively quadrupling the amount of available computing bandwidth over the traditional PCI interface. This results in smoother streaming video faster music sharing and lightning-fast access to mass-storage devices. IOGEAR"S PCI-Express Cards support all Serial ATA features including 3.0Gbps SATA transfer speeds Native Command Queuing port multipliers with FIS-based switching programmable output signal swing strengths for longer external cables or extended backplanes hot plugging enclosure management and ATAPI device support.