Which connection for External HD drive?

Discussion in 'Mac Accessories' started by Happy Marsden, Sep 7, 2014.

  1. Happy Marsden macrumors member

    Joined:
    Sep 5, 2014
    #1
    Can anyone tell me, which would be faster?....

    a) A 1TB SATA HD in an external PATA enclosure (fitted with a SATA-to-PATA adapter) tethered to iMac via Firewire 800 port

    OR

    b) 1TB SATA HD in an external SATA enclosure tethered to iMac via USB 2.0 port?
     
  2. Altemose macrumors G3

    Altemose

    Joined:
    Mar 26, 2013
    Location:
    Elkton, Maryland
    #2
    The USB enclosure would be faster as PATA is a slow interface. It is like having a big fire hose (FireWire) going into a garden hose (PATA adapter).
     
  3. Happy Marsden thread starter macrumors member

    Joined:
    Sep 5, 2014
    #3
    That's where I'm confused. According to this link (Tom's Hardware), PATA (at least ATA-133 PATA) is stated to be faster than USB 2.0.That's 1,064 mbps (ATA-133) vs. 480 mbps (USB 2.0).
     
  4. Altemose macrumors G3

    Altemose

    Joined:
    Mar 26, 2013
    Location:
    Elkton, Maryland
    #4

    But also consider the maximum speed of that adapter.
     
  5. Happy Marsden thread starter macrumors member

    Joined:
    Sep 5, 2014
    #5
    Of which adapter, the one in the optibay? I know its PATA, but I'm not sure if its ATA-133 or ATA-66. Google was not my friend on this one. But if its ATA-133, then if the specs in the link are correct, its faster than USB 2.0.
     
  6. Altemose macrumors G3

    Altemose

    Joined:
    Mar 26, 2013
    Location:
    Elkton, Maryland
    #6
    I am referencing the SATA to PATA adapter. Not all adapters are created equal.
     

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