SATA revision 3.0 (6Gb/s) compliant Compatible with SATA revisions 2.0 (3Gb/s) and 1.0 (1.5Gb/s) USB 3.1 Gen 2 Performance: Compressible Data: 633 MB/s Read and 738 MB/s Write / Incompressible Data: 689 MB/s Read and 573 MB/s Write / Random Read/Write (IOPS): 29K IOPS Read and 31K IOPS Write USB 3.1 Gen 1 Performance: Compressible Data: 437 MB/s Read and 431 MB/s Write / Incompressible Data: 425 MB/s Read and 414 MB/s Write Portable RAID PowerhouseMercury Elite Pro Dual mini is the latest high-performance portable RAID from OWC. Packing dual-drive, USB 3.1 Gen 2 performance into a portable, bus-powered form factor, this is the perfect drive for high demand applications on the go. With ample capacities, no matter where you are, Elite Pro Dual mini delivers the performance and flexibility to meet the most extreme workflow requirements for pros working with rich media content.RAID for Redundancy. RAID for Performance.Mercury Elite Pro Dual mini features easily user selectable modes RAID 0