The Buffalo drive seems to get around 100mb/s on both Thunderbolt and USB3, and it's a 5,400rpm drive. If anyone has the 750GB or similar Seagate Goflex for Mac, which I believe has a 7,200rpm drive, plus the Goflex thunderbolt adapter, could you post up what kind of speeds you get? I know neither of these drives will hit either TB or USB3 peaks, but I want to use the TB port out of my display, I have USB devices coming out of my ears. If I had the money I'd get the Lacie little big disk, but alas, I don't!