Unfortunately as some other reviewers have noted, this is most likely a fake :( I bought this for a dashcam. Even though it costs more than for example the Ultra, the dependability would be worth it... That is, IF this truly were a Sandisk Extreme. After inserting the card into the dashcam, and formatting it, everything worked fine for 2 days. Then on the 3rd, suddenly during a drive, an error message popped up stating memory card corrupt! The dashcam would no longer record, and even powering it down and powering up again would not make it continue, the error message kept popping up. I’ve not had this error pop up before with 3 other cards I’ve used (from various brands). Formatting the card again allowed the dashcam to operate again, but most likely it will fail again. Guess I’ll need to go to a brick&mortar for the genuine stuff.