These USB hard disk drive enclosures from StarTech.com enable you to install 3.5in drives into an external enclosure, taking advantage of the speed and throughput of SATA III. They support the USB Attached SCSI (UASP) protocol for enhanced performance when paired with a UASP-enabled host controller. Using a more efficient protocol than the traditional USB BOT (Bulk-Only Transport), UASP reduces latency, significantly increasing transfer speeds and reducing processor usage to utilize the full potential of your SATA III hard drives.