This is a true bad experience about this product. Don’t waste your money over it. I bought this few months ago, I use this pen only while I driving in my car to listening song. I didn’t even use it for file transfer kindof work. It’s kindof virus addicted pen drive. Formatting your pen drive won’t work in this case. If You have any pendrive of SanDisk then you shouldnot store your important document in it. I will upload a picture of it but I already throw it away so I don’t have any pics of it.