I bought the 16GB drive and I need it mainly for data transfer in the work. The stick is immediately recognized by both my company laptop as well as my home PC. The writing speed is absolutely sufficient and much faster than I expected after the previous reviews for my data size. That delivery was super fast and properly, you really need now no longer at Amazon highlight Why only 3 stars awarded at the end is that the locking of the sticks generally takes place in the open position, that is, if I transport the stick on a key ring in the pocket, it is open for a short time and the USB-Contact is then any pollution exposed, which is not exactly my requirements.