Bests & Worsts Reviews from Amazon

Bought these because I read all the great reviews but I just don't think people are being smart about this maybe? Be warned and here is why ... I work in data recovery and reliability for the data on a flash drive is tantamount to any cost. I needed some flash drives to give clients back their data on. So I figure the drive doesn't have to be the absolute fastest it just needs to hold data properly. I let my clients know that they need to transfer the data from the drive to their computer and once they verify that they have the data safe then and only then do I delete it from my storage. Let me tell you about my experience with these flash drives. First of all I couldn't get this flash drive to format properly ever. Not once did I not have to use unix instead of Disk utility on a Mac to get this to format properly. Then even after it formats putting data on it is like watching Molasses come out of a tree in December. OMG 8mb per second write speed when USB 2 is capable of theoretically 53MB/s !! * (USB 2 uses 1 millisecond frames, and in High Speed (480 Mb/s) mode they are divided into 8 micro-frames. 1000 * 8 * 512 * 13 = 53248000 ~= 53 MB/s) Even then afterI tested the drive with Blackmagic speed test and saw 8 MB/s it still didn't even come close to that when trying to move files to it. 1GB of data took almost 2 hours.!! That's 0.13 MB/s and trust me my 2015 Mac Pro is no bottleneck.