I was checking out a 40gig retail drive at staples for $99.99. Box says its a 7200rpm drive & has the ATA133 sticker attached to it on the front. However, on the side sticker it says ATA-100. I hate the way Maxtor makes it so vague as to what HD is in its box. I remember going through this 2 years ago trying to figure out if its a plus 40 or plus 60 drive. I ask because I want the D740X model & i cant tell if that is the drive in the box. Serial number off the side is 362203023846 if that helps. Thanks