Iomega MicroMini Hard Drive 6GB 1.0" USB 2.0. Hard drive capacity: 6 GB, Hard drive rotational speed: 4200 RPM, Hard drive interface: USB 2.0. Weight: 50 g. Hard disk transfer rate: 60 Mbit/s, Minimum processor: 300 MHz, Minimum system requirements: IBM PC/Mac CD-ROM 4X Microsoft Internet Explorer 5.0