Bests & Worsts Reviews from Amazon

I bought two and neither worked as they should. Data can be written to both on USB 3.0 but as capacity becames fuller, the write speed decresaes to usb 1 levels. One of them can read at decent speed on usb 2, but corrupts data when it reads data on an usb 3.0 port. The other no matter which usb port uses, keeps disconnecting while reading large amounts of data, so I cannot use it for long files or sustained data transfers. What a pitty that HP puts its name on these kind of stuff.