Review on TOSPLUS 3Pack 16GB USB 2.0 Flash Drives - Reliable Memory Sticks for Quick Data Transfer (Black/Blue/Red) by David Fisher

I tested all 3 drives by writing 10 3GB random data files and checking the checksum. 2 have proven to be good - performance isn't great, but it's close to spec and they seem reliable. The second started well, then stopped. Some parts of it are bad - writes slow to < 1MB/s and data comes back corrupted. I washed and tested several times and the results kept getting worse. every time. It's toast.