SATA 3Gb/s
With the release of the NVIDIA nForce4 chipset in 2004, the clock rate was doubled to 3.0 GHz, for a maximum throughput of 300 MB/s. SATA 3Gb/s is backward compatible with SATA 1.5Gb/s, allowing SATA 1.5Gb/s hardware to interface with SATA 3Gb/s ports and vice versa. However, some systems that do not support SATA speed autonegotiation may require that the drive's speed be manually limited to 150 MB/s with the use of a jumper for a 300 MB/s drive. [1]
The 3.0 GHz specification has been very widely referred to as “Serial ATA II” (“SATA II”), contrary to the wishes of the Serial ATA standards organization that authored it. The official website notes that SATA II was in fact that organization's name at the time, the SATA 3Gb/s specification being only one of many that the former SATA II defined, and suggests that “SATA 3Gb/s” be used instead. (The Serial ATA standards organization has since changed names, and is now “The Serial ATA International Organization”, abbreviated SATA-IO.)
SATA-IO plans to further increase the maximum throughput of Serial ATA to 600 MB/s around the year 2007.
SATA 3Gb/s is also sometimes referred to as SATA/300 or SATA II, continuing the line of PATA/100, PATA/133 and SATA/150.
Sign up with Google