LaCie Mobile Hard Drive, Design by F.A. Porsche 40GB 5400RPM USB 2.0. Hard drive capacity: 40 GB, Hard drive rotational speed: 5400 RPM, Hard drive interface: USB 2.0. Weight: 180 g. Minimum processor: Intel Pentium II 350MHz / iMac, Power Mac G3, Minimum RAM: 32 MB, Power requirements: Optional