Beyond USB, beyond FireWire, eSATA is the fastest interface available for external storage. Many computers however do not include eSATA (external SATA) as a standard interface. To take advantage of up to 3 Gb/sec eSATA performance with your Pro Drive or Duo Pro Drive, add the Fabrik ProPort eSATA card and maximize your drive's performance.eSATA Express is an easy plug and upgrade for a PC or Mac that brings the speed and reliability of eSATA to your external hard drives. Up to six times faster than USB, 3 Gb eSATA is a dedicated storage interface that enables you to get the most out of your external hard drives whether you are editing video or just trying to backup your data quickly and reliably. eSATA Express is optimized for the Fabrik line of SimpleTech Pro Drives and Duo Pro Drives to make sure you get the fastest possible throughput every time.