Macbook Pro eSATA Expressport?

I purchased an OWC eSata Express card about 18 months ago. I note that they have two of their OWC branded cards but I cannot discern the difference. I do remember the price was $20 so it probably is the less expensive one.

The data transfer speeds are much faster than Firewire 800. My experience has been up to 50% less time to transfer similar quantities. I cannot comment if the card slows down the transfer speed because I simply don't know and I have now way of measuring.

As far a HDDs are concerned, I have 4 Seagate 750 Gb 7200 rpm drives in my collection. One is in my MBP, the three others are in the enclosures that OWC sells (Mercury Elite-Al Pro). They may expe3nsive for some but I have not seen any better and I do endorse them. The only thing that they lack is a Thunderbolt connection (which I suspect will eventually come).

If capacity is important, do not discount the 1 Tb HDDs. Even though the speed is 5400 rpm, the overall performance will be similar to a 750 Gb 7200 rpm HDD. Data density does matter in HDD performance.

Ciao.