I-NA320U Plus is a SuperSpeed USB 3.0 Portable Docking Station designed for data transferability up to 5Gbps. It provides the flexibility of connecting any SATA I/II/III Hard drives for full transfer potential through laptop or PC without having the hassle of opening up the tower or installing into an enclosure. Simply insert a 2.5" or 3.5" SATA /II/III hard drive into I-NA320U Plus Docking Station and transfer, copy, and backup all data and media files with optimum performance. SATA III will support up to 600MB/s peak.