The full English name of SATA is: Serial-ATA (serial), which is a new interface standard. Compared with parallel ATA, SATA has a relatively large advantage.
First of all, Serial ATA transmits data in a continuous serial manner, which can increase the bandwidth of data transmission by using a higher operating frequency with less bit width. Serial ATA only transmits 1 bit of data at a time, which reduces the number of pins on the SATA interface, reduces the number of connecting cables, and increases efficiency. In fact, Serial ATA can do all the work with only four pins, which are used to connect cables, connect to ground, send data and receive data, and this architecture can also reduce system power consumption and reduce system complexity.
Secondly, Serial ATA has a higher starting point and greater development potential. The data transfer rate defined by Serial ATA 1.0 can reach 150MB/sec, which is higher than the current fastest parallel ATA (ie, ATA/133), which can reach a maximum of 133MB/sec. The data transfer rate is still high, and the current data transfer rate of SATA II is as high as 300MB/sec.
The Serial ATA bus uses an embedded clock signal, which has stronger error correction capability, simple structure, and supports hot swapping.