As a dock, the BlacX's selling point would be how it hard drives can be quickly accessed or removed. For those who have many hard drives on hand, this would seem to be the perfect product to juggle across their collection. The BlacX is even more attractive for those that troubleshoot and backup hard drives. Of the three models present in the BlacX series, the BlacX with USB 2.0 and eSATA support (product number ST0005U) will be examined in the following pages.