StarTech.com USB 3.0 eSATA Dual 3.5 SATA III Hard Drive RAID Enclosure w/ UASP and Fan - Black - Multi Bay 3.5" SATA HDD Enclosure w/ UASP Versatile connectivity options, through either USB or eSATA Time-saving file transfers, up to 70% faster than traditional USB 3.0 when used with a UASP-supported host Achieve greater drive capacity or secure data redundancy with multiple RAID modes Maximize performance, with file transfer speeds up to 6Gbps using SATA III UASP Support (Attached SCSI Protocol Specification Revision 1.0) eSATA or USB Host Connection Compatible with SATA revision I/II/III (1.5/3.0/6.0 Gbps) Hardware RAID