Portable Hard Disk Drive

Purchase Portable Hard Drives at Best Price in Sylhet Bangladesh

Portable or external hard disk drives are dominant secondary storage devices for storing digital information that is usually pre-assembled or assembled by combining an external enclosure. These are available in two different sizes variants, 2.5-inch are typically known as portable external hard drives and 3.5-inch are known as desktop external drives. The concept of secondary storage was first introduced by IBM in the year of 1956. Over the passage of time it improves and in March 2015 it achieved the capacity volume from 500GB to 1TB.