Sata technology
In computer hardware, Serial ATA (SATA or S-ATA) is a computer bus technology primarily designed for transfer of data to and from a hard disk. It is the successor to the legacy Advanced Technology Attachment standard (ATA, also known as IDE). This older technology was retroactively renamed Parallel ATA (PATA) to distinguish it from Serial ATA.
SATA 1 (SATA I)
The First Generation of Serial ATA interfaces is also known as SATA 150. This name is given because SATA 1 runs at 1.5 gigahertz. SATA1 has a data transfer rate of 1.2 gigatbits per second.
SATA 2 (SATA II)
The latest SATA technolgy now runs at 3 gigahertz per second. SATA2 is backwards compatable with SATA1 so a SATA 1 hardware interface can be used with a SATA 2 hard drive, and visa versa.
SATA2 is approximately the same price as SATA1.
