External DAS, NAS / SAN storage arrays which house multiple hard drives.
DAS / Direct Attached Storage storage systems are external chassis that hold multiple drive modules connected directly to the system using one of many types of ports including eSATA, USB, Firewire, SCSI, SAS, and Thunderbolt.
NAS / Network Attached Storage solutions provide large external 24/7 storage without the need for a dedicated computer. They can be rack mountable units or small desktop size chassis. Storage is accessible via your network connection, which facilitates ea