I think cache is there in the pen drive that is more faster than RAM but the memory of it is less and due to it the data transmission through the pen drive is very high and most of the people make use of it because of its fast speed and portability features.Chirag Sachdeva
Yes Chirag you got my point right. Your reply is very convincing and reliable too. Nowadays pen drives are used for getting big videos uploaded in no time. Gone are the days of VCD or DVD's. Pen-drives proving to be more beneficial now.