With the LaCie PCI Express (aka: PCIe or PCI-E) Card, design by Sismo, it's easy to get fast SATA II compatibility. Perfect for connecting a LaCie d2 Quadra or 2big Quadra to your computer, it's also compatible with non-LaCie eSATA devices. Once installed, the card supports eSATA hot plug/unplug, Native Command Queuing (NCQ), port multiplication and PC bootability. With two eSATA ports, you can connect two devices at once. Whether you use Windows or Mac, it quickly brings the impressive speed and high performance of this superior interface to your system.