Imation 4GB Micro Hard Drive: Still Micro on the Outside, More Giga on the Inside. With a unique padlock design, the Imation Micro Hard Drive features a flexible USB connector that locks directly into the drive and can be easily used to clip the storage device to a belt loop or keychain. The Micro Hard Drive encompasses a hard disk drive smaller than the size of a quarter - but powerful enough to quickly and easily store 4GB of information. (PRNewsFoto/Imation Corp)