User Manual
Page 5
... greater ✦✦ Available USB 2.0, FireWire 400, FireWire 800 or eSATA interface port* ✦✦ Compatible with Time Machine *Most computers do not come from the factory with eSATA ports, so you may need to purchase a connection card (such as PCI or PCI-E) to be able to connect your LaCie d2 via the eSATA interface...
... greater ✦✦ Available USB 2.0, FireWire 400, FireWire 800 or eSATA interface port* ✦✦ Compatible with Time Machine *Most computers do not come from the factory with eSATA ports, so you may need to purchase a connection card (such as PCI or PCI-E) to be able to connect your LaCie d2 via the eSATA interface...