By "real" conditions in Windows environment: Read on average 90MB / sec (+/- 5). Writing is something cozy under real operating conditions and levels usually around 19Mb / sec (+/- 3) for large files. Small files can this mini USB stick soger wegschreiben faster, which somewhat surprised.
Details Performace can be found in the Atto benchmark screenshot, which was created under Win7 on an Intel i3 platform.