Smaller in size but bigger in storage capacity, Hard disk drives are extended form of USB pen drives. If you want to store large database that run into several GBs, USB hard disks are the best option to carry that data. This option is well adopted by individuals and small & medium organizations, who cannot afford cloud computing services. External hard disk drives can easily transfer your data while ensuring security of those data. Moreover, some USB hard disks have facility to retrieve the database if it is lost accidentally. Password protection is another useful feature of external hard disk drives. Explore hard disk drives of different sizes and prices on Infibeam.com.