Emtec Giga Cube USB2.0 Hard Drive 4GB£29.98 or £54.99
You have to see how small this is,its abit bigger than a 50p coin at a good price
This handy little portable storage device plugs directly into the USB port of your PC allowing you to save or drag and drop files directly onto it for safekeeping, sharing, storing or portability.
With up to 8GB capacity you can easily store large volumes of data, photos, music and more. Unlike USB pen drives which store your data on a micro chip, the EMTEC Gigacube stores your data on a miniature hard drive, much like the hard drive in your PC only much, much smaller, which should have greater durability than the flash memory of a pen drive.
The outer casing is made of soft black rubber for protection and the device is so small and light it will easily fit into your pocket.
Fully USB compatible, just plug and play in any computer with no need to install additional software.
Central LED blinks brightly during data transfer