Warm prompt: Dear customers, please carefully look at your camera model, some of the camera is not able to support so large capacity 64 gb memory stick, you can choose to 8 or 16 g.This is the conclusion we draw from our customer feedback. We guarantee 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. Speed varies upon the measurement conditions Memory Stick PRO-HG Duo HX is ideal for high-speed data transfer aor continuous shooting You can take up to 180 large JPEG photos per minutes.- Memory Stick PRO-HG Duo HX is ideal for high-speed data transfer and for continuous shooting- 64 GB capacity Flash memory Ideal for burst shooting with DSLR Up to 30MB/s read/write speed- Can be used to perfect on the PSP- Compatible with MagicGate copyright protection technology- So this is a combinatorial memory stick, and it can be split into a little memory stick and a Adapter*** Todos nuestros productos son exportados desde Estados Unidos hasta tu casa!*** Cualquier pregunta no dudes en contactarnos, estamos para servirte!