Which one is the fastest to use instead of usb or firewalls

Can anyone tell me which one is faster to use between SATA,IDE,DMA,and SCSI instead of using usb or firewalls??
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More about which fastest firewalls
  1. Well SATA is by far the fastest interface of the ones named...
  2. Ignore IDE/UDMA old hat.

    SCSI data rates @ http://en.wikipedia.org/wiki/SCSI

    SATA date rates @ http://en.wikipedia.org/wiki/SATA

    USB 1/2 data rates @ http://en.wikipedia.org/wiki/USB

    USB3 = Max. 4.8Gigabits/Sec.

    For a normal pc, SATA2/3 is what your aiming at for internal HDD's/DVD's and USB2/3 for external HDD's/DVD's/Flashdrives.

    SCSI normally only found in servers or very high end workstations.
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