The S3510BMU33 Black USB (Universal Serial Bus) 3.0 Hard Drive Enclosure with UASP lets you connect a 3.5in SATA III hard drive (HDD) through an available USB (Universal Serial Bus) port. The enclosure delivers optimal performance with a USB (Universal Serial Bus) 3.0 connection, but is backward compatible with USB (Universal Serial Bus) 2.0/1.1 host connections as well. Enhanced with UASP (USB Attached SCSI Protocol), this 3.5" SATA III enclosure performs up to 70% faster than conventional USB (Universal Serial Bus) 3.0 when paired with a UASP-enabled host controller. Using a more efficient protocol than the traditional USB (Universal Serial Bus) BOT (Bulk-Only Transport), UASP reduces latency, significantly increasing transfer speeds & reducing processor usage to utilize the full potential of your SATA III hard drives. See our UASP testing results below for further details. With support for SATA I/II/III, & large capacity drives (tested up to 4TB) this HDD enclosure is compatible with virtually any 3.5in SATA hard drive, & can greatly increase the storage/backup capabilities of your computer. The USB (Universal Serial Bus) 3.0/SATA III enclosure features high quality aluminum construction, ensuring durability. Backed by a Star Tech.com 2-year warranty & free lifetime technical support. enhanced Performance with UASP UASP is supported in Windows 8, Mac OSX (10.8 or above), & Linux. In testing UASP performs with a 70% faster read speed & 40% faster write speed over traditional USB (Universal Serial Bus) 3.0 at peak performance.