Check the listing for details. Bytecc SATA-136E e-Serial ATA 36-Inch Cable. Condition: New. Listed at 6.50 USD. Bytecc SATA-136E e-Serial ATA 36-Inch Cable Condition: New Manufacturer: Bytecc Part Number: SATA-136E Features: Compared with the Parallel ATA , Serial ATA has more advantages as per below listed: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