ExpressCard USB bus?

Discussion in 'MacBook Pro' started by donbenjy, Oct 31, 2008.

  1. donbenjy macrumors 6502

    Joined:
    Oct 15, 2008
    #1
    Right, the expresscard slot in the MBP connects via the USB bus yes? If so, what's the point in getting say, a firewire card, because it will have a max transfer speed of 480mbps? I was also think about getting a 16 or 32gb ssd with the possibility of booting leopard and launching apps from it, but surely that would suffer from the same problems instead of giving me 3gbps?
     
  2. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #2
    It depends on the card you're using. It has the option of using a PCI-Express x1 link or a USB 2.0 one.

    The FireWire Expresscard is going to use the x1 link.
     
  3. donbenjy thread starter macrumors 6502

    Joined:
    Oct 15, 2008
    #3
    oh is see! That's cool. I think the current ssd drives that I've looked at used the USB one, and I assumed in the review that it was due to the MBP limitations, rather than the card.

    thanks
     
  4. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #4
    It's going to take some research to find a SSD drive that works over the PCI-Express x1 link instead of over USB 2.0. ;)

    250 MB/s (2,000 Mb/s) vs. 480 Mb/s
     

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