No idea how manufacturers determine their fancy details in the reading performance.
With h2testw came with me to the USB 3 reading 35MB / s and write at 19 MBs out.
Were it not for the nonsensical name of the manufacturer, that would be really a good value compared to my previous
2 USB sticks. So you can actually just shake their heads and wondering what you want to print such nonsense on the packaging.
Good value for this low budget low price stick is ok.
Addendum: I read in a review that someone has reached with ChrystalDiskMark the indicated value, I've just also tried - Warning - the setup routine tries Tuneup foist - so always install Custom - The values are also here almost identlisch with 39 Read and write 18.
System: Win 8.1 64bit, I5, 8GB Ultrabook