Once I have purchased pen-drive from ebay at flash sale.i got that pendrive from just rs.80.
Its very low price you cant imagine its 16 gb cruzer blade sandisk pendrive.
Once I open that pen-drive there is also one software that secure your data.so its just a advance version. Just you have to sign up on e-bay. And whenever there is sale they will notify you about this sale and you can purchase at this price.