ExpressCard Firewire Adapter

Discussion in 'MacBook Pro' started by oYx, Nov 1, 2011.

  1. oYx macrumors regular

    Joined:
    Sep 2, 2007
    Location:
    London
    #1
    I have a 2007 MBP, and I understand that the existing Firewire 400 and 800 ports are on the same bus.

    I wonder if the Expresscard Firewire adapters with two ports actually provide two Firewire buses? The specs do say up to 2.5 Gb, so I assume that will be more than enough for two FW800 devices to run at full speed – but I want to be sure.

    Any insight will be much appreciated.
     
  2. Detrius macrumors 68000

    Joined:
    Sep 10, 2008
    Location:
    Asheville, NC
    #2
    FireWire 800 is 800Mb/sec, which is .8Gb/sec.

    The math means there are three 800Mb/sec channels.
     
  3. ooans macrumors 6502

    Joined:
    Jun 4, 2011
    #3
    My firewire 800 expresscard transfers speeds dropped dramatically after upgrading to Lion. Probably something related to drivers. Unluckily the company doesn't provide Lion compatible drivers.

    16Mb/s is a bit too slow...
     
  4. oYx thread starter macrumors regular

    Joined:
    Sep 2, 2007
    Location:
    London
    #4
    Was just also wondering if the 2.5 Gbps only applies to the data link. Anyone tried running both ports at full FW800 speeds?

    ----------

    Did you manage to run both ports at full FW800 speed before you upgraded to Lion?
     

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