Warm prompt: my dear friends
Warm prompt: my dear friends, if you want to SONY series camera used on the memory stick again, so please carefullylook at your camera model, some of the camera is not able to support so large capacity 64GB memory stick, you can choose to 8GB-128GB.This is the conclusion we draw from our customer feedback. We confirm that every memory stick has been tested by staff at the time of issue. Please be assured. Approximate 30MB/s in reading and approximate 20MB/s in writing speed. Transfer speed is about 6 times faster than the Memory Stick(R) PRO Duo.