The materials are cheap. When screwing one of the screws to me is simply torn down, although I was careful. That has not happened to me in 30 years. The max. Transfer rates for reading and writing are very constant at about 35 MB / s, That is not USB3, but pretty much the USB2 data rate. Just tested again: The problem is that cheap USB port that receives only contact if you neatly pushes the plug upwards. Otherwise there's no Connect or just very slowly. The Connect likes sometimes lost in the middle of operation. The ideal device to shred its SSDs. Go back.