Does anyone have one of these cards and does it work for you? I am trying to use it with a Seagate Freeagent 750gb ext drive which has USB2 and eSata. I installed the drivers that came with the card and the transfer rate is way slower than USB2. I called the iogear support line and they were helpless. I suspect that it's the driver - they don't have an update yet for osx 10.5