In terms of read speed, it's fine, with a sustained rate of around 90Mb/s with small fluctuations according to HDtune pro. However, when it comes to write speed, things change. It doesn't zero out during the transfer of large files like some other cheap options, but it is slow, with an average transfer speed of around 9Mb/s. When the buffer fills up, it briefly reaches 60-70Mb/s and then drops back down to 9. BUT, personally, I bought it because every PNY product I have purchased so far, regardless of price, has proven to be reliable. And in a cheap product, what you want is for it not to break on the next use. Only time will tell. In conclusion, if you're looking for a rocket-like USB stick in terms of write speed, look elsewhere, at more expensive options. With 22 euros for 256MB, don't expect miracles. And a piece of advice. Format your USB sticks with a relatively large cluster size, it gains a bit in speed but loses a bit in capacity, especially when transferring large files. If there are any issues with the stick, I will update.