The S3510BMU33B 3.5in SATA hard drive enclosure lets you add external storage to your computer by connecting a 3.5" HDD through an available USB (Universal Serial Bus) 3.0 port. Enhanced with UASP (USB Attached SCSI Protocol), this enclosure lets you get the most out of your SATA III hard drive with performance up to 70% faster than conventional USB (Universal Serial Bus) 3.0 when paired with a UASP-enabled host controller. See our UASP testing results below for further details. The enclosure features aluminum housing with a built-in fan to keep your drive running at an optimal temperature at all times. Plus, to help save valuable work space, the enclosure features an upright design that minimizes its footprint & makes it easy to position near your computer. 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. To ensure compatibility with your computer system, the S3510BMU33B supports all of the leading operating systems, including: Microsoft Windows (8/7/ Vista/XP/ Server 2008/ Server 2003), Apple OSX (10.9/10.8/10.7/10.6), Linux, & Google Chrome OS™. The S3510BMU33B is 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.