What is SATA2, what is SATA3, what is the difference?

    SATA2.0 is the chip giant Intel and hard drive giant Seagate on the basis of the development of SATA, its main feature is the external transmission rate from 150MB/s to SATA 300MB/s.
    SATA3.0 interface technology standard is proposed by the company in the first half of the first half, the technical director of the design department of Intel's storage products Knut Grimsrud SATA3.0,he said that the transmission rate will reach 6Gbps .

the difference:
    The key difference between SATA2.0 and SATA3.0 is the transmission speed, the highest transmission speed of 300m is SATA2.0 per second, while the highest transmission speed of 600m is up to SATA3.0 per second, in other words, the SATA3.0 speed is doubled;
    Is it a computer to buy a SATA3.0 interface? Also not necessarily, because the SATA3.0 theory to support the highest speed of 600m per second, does not mean that the actual use of 600m per second, there is a very important factor is the transmission speed of the hard disk, because the SATA interface is connected with the hard disk, if the transmission speed of the hard disk is only 300m per second, and that SATA2.0 and SATA3.0 are basically no difference.
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