OK so we all know what a USB flash drive does, so let's forego the formalities. I bought these for backing up the various PS4s in the house (there are three). My youngest son had a PS4 failure so we had to send it to Sony for repair (under warranty), but of course it came back with everything wiped clean so I ended up having to 'rebuild' the system (ids, networking etc), but could do nothing about his game saves (one of which he'd been playing for months).



I bought these and they have been good for that job, however they do feel very light and plasticky so I'm not sure if I'd want to use one to stick in my wallet and carry around, especially if the data on it is important. However because they tend to be left in a PS4 USB slot I don't have a problem, and have no evidence that they aren't stronger than their appearance suggests. Four stars on the basis that they do the job, and while they appear fragile they may be able to withstand hard knocks, I just don't know.