The Very Large Scale Integration technique helps in producing devices of compact size. Among such devices, USB flash drives are widely used and made the floppy disks obsolete. The merit of being small becomes a demerit as it can be easily stolen. For those who like the data stored should never be accessed by anyone other than the owner,  Biometric USB Flash  drives will be the most suitable. The fingerprint reader is mounted over the biometric USB flash drives that make them sleek and compact. The data is well secured by the finger print security system and can be accessed only by the owner after undergoing the fingerprint verification process.