This bundle (F.GR-9106-000A) provides a solution to use the DiskCypherTM Lab Kit with an eSATA External drive. The PCs eSATA or USB interface can be used to connect the eSATA External drive. The USB connection solution requires use of the "SATA-to-USB Bridge + External Power Supply" Kit (CSAR-0222-000A) supplied with the DiskCypherTM Lab Kit. If the DiskCypherTM Lab Kit was not purchased, then both the Bundle (F.GR-9106-000A) and the "SATA-to-USB Bridge + External Power Supply" Kit (CSAR-0222-000A) would be required.