1、SATA is a computer hard disk interface on the motherboard, 3 is the upgrade version 2, released in 2009, so the computer motherboard before 2010, basically only provide sata2.0 interface, if you don't know your computer's sata2.0 or sata3.0, if you buy this computer time; if your computer was purchased in 2010 and after at the same time, the board may provide sata2.0 and sata3.0 interface, can be used, Master Lu and other hardware detection tool to further confirmation, sata3.0 interface compatible with 2, so if your computer includes only 3, still can use 2 of the disk;

2、Sata2.0 and sata3.0 the key difference lies in the transmission speed, the maximum transmission speed of sata2.0 is 300m per second, and sata3.0 the highest transmission speed of up to 600m per second, in other words, sata3.0 speed double;

3、The Is it right? Must buy buy computer sata3.0 interface of computer? Not necessarily, because sata3.0 theory support up to 600m per second, not necessarily in actual use up to 600m per second, there is a very key factor is the transmission speed of hard disk, the SATA disk interface is connected together, if speed is only 300m per second highest transmission of hard disk, the sata3.0 and sata2.0 has no fundamental difference;

4、At present, most of the mechanical drive transmission speed of no more than 100m, so if you use mechanical hard disk, need not worry completely interface problems; but with the development of science and technology, solid state drives more and more consumer attention and the affection, the transmission speed of solid state disk is probably more than 300m per second, so if you want to use the solid state disk on the computer the computer, suggestion choice sata3,0.