Just to clarify, the 2400 is designed around the 12.5mm thick drive. A thinner drive will fit but there have been questions about heat dissipation without sufficient contact with the heat sink. I have the IBM DARA218000 18gb hd in mine and it works great. Now if I could just find the cash for a new 60gig > << It's the standard 2.5" drive. > > ~ Larry >> > > it's NOT the width that is the concern, or the size of the drive, it's the > actually THICKNESS of the drive that determines if it can fit inside a 2400c > laptop. if it was purchased in the past 5 or so years, it is mostly likely > thin enough a drive to fit. older drives that are also 2.5 in drives were > made THICKER since that was the only option at the time that they were > designed. > good luck > Alan