Capt. John
Do not buy, card failed on the third usage.  Kicker not to my favoris you only have about 2 months to return this card for a full refund.Then, it's a pro rated rated deal when you send it back to Amamzon inLexington, KY.The failed card was in a GoPro White Edition. Needless to say, a camera thatwas purchased for summer outdoor usage in November is going to sit for quite awhile before you have time to get your money back.  Card sat all winter and failedtowards the end of April.  6 months lag to get a decent, even pro rated refund.Out of all the items I bought from Amazon this is my only bad experience.64 gigs crammed on a tiny micro SD card is too much.  I'll stick with thesmaller 32 gigs until this technology is meant to last.Refund Update, once again Amazon did the right thing anbd refunded full purchase pricefor the dead 64 gig.  Amazon is where I shop for 2 reasons.  1. I live 50 miles frombig box stores and 2. they ALWAYS make things right with no muss ...no fuss.I replaced the dead card with Amazon brand Micro 32 gig SD micro card.I have purchased Amazon branded SD cards before and they work just as good as any.Not to mention the cost savings.