Compared with the Parallel ATA , Serial ATA has more advantages as listed below :
The External connector has no "L" shaped key, and the guide features are vertically offset and reduced in size. This prevents the use of unshielded internal cables in external applications.
Lower voltage signal level: The level of voltage to the Serial ATA is of differential 500 mV , and it's more suitable for PC's technical request than that of 5 Volt Parallel ATA, and it can save more power as well.
Pin Pitch Advantage: Serial ATA connector includes a line of 7Pin signal terminal and a line of 15Pin power terminal . These two lines of terminals can be detached to the freestanding tie-in, therefore, it not only reduces its body size but also enlarge is trans-positional space.
Transferring Speed Advantage: It almost has no potential to fasten the transferring speed of Parallel ATA. But for the Serial ATA ,the transferring speed for its incunabular design is 150MB/s , and now it is striding forward to the speed of 300MB/s and even up to 600MB/s .
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