http://en.wikipedia.org/wiki/SataSATA Revision 1.0 (SATA 1.5Gb/s)
SATA Revision 2.0 (SATA 3 Gb/s)
SATA Revision 3.0 (SATA 6 Gb/s)
All SATA data cables meeting the SATA spec are rated for 3.0 Gbit/s and will handle current mechanical drives without any loss of sustained and burst data transfer performance. However, high-performance flash drives are approaching SATA 3 Gbit/s transfer rate, and this is being addressed with the SATA 6Gb/s interoperability standard.
SATA er backwards compatible þannig að þú getur sett hvað sem er í hvað sem er, en ef þú þarft SATA 3 performance, þá þarftu SATA 3 kapall líklegast.