Most portable hard disk drives can store all sorts of files with memory capacities ranging from 100 gigabytes to a whopping 500 gigabytes–but they’re a bit bulky. However, if you need something that will fit right in your shirt pocket, then you may have to go with flash memory.
One of these products is the Sandisk 4GB microSDHC with USB Reader and SD Adapter. Sandisk is one of the pioneers of flash memory technology. Few other flash memory providers come close to the quality that Sandisk-made products provide.