I was looking for a Micro Memory Stick for my AV Receiver. For this he is ideal and met my expectations. With some lame writing speed I can live. Thus been determined unsuitable for permanent data transfer. Decisive for the purchase was its size, since a 5 cm long USB in "Front inputs" is relatively vulnerable, these "plastic deformation" happened to me once before on the car radio and is fatal for the store! I hope for a long life !!!