3 months before I purchased a Sandisk usb 3.0 Pendrive of 32 GB space through amazon costed 650rs. Initially everything was fine. It worked perfectly with my Lenova laptop on both 3.0 and 2.0 ports. Pendrive contains some internal file securing sofwares pre instaled. Just connect the drive to the pen drive port system will automatically detects and installs drivers within 10 seconds. File Transfer rate was high as 3 mbps in 3.0 port. Plastic body and design is also good. It can be used as keybunch also. Within 2 weeks of purchase outer body caught scratch designs and pen drive was looking OLD. After 3 months of usage I inserted pen drive to Onida DVD player usb port and Pen drive stoped working all of sudden. All files movies inside the drive was gone. I tried to do some trouble shooting but no use pen drive was not even recognised by laptop. I went to survice station as life time 5 year warranty wqs there for Sandisk Pendrive. survice center guys said its due to short circuit hapoend inside Pendrive and is not covered in warranty, So no replacement can be done. Within 3 months latest Pendrive stoped working. Their circuits are not good hence the issue. I am still using Sandisk old pen drive which I baught for6 years agi without any issue but the latest Pendrives are worst in quality and build. I dont recommond Sandisk drives to anyone.