Thank god I got the Red & Gold Extreme version, even thought it was a little bit more than the other, but it was worth it since the Read & Write is Super fast. As I was importing the GoPro footage via this MicroSD, it completed it so fast that I thought that it really hadn't transferred since my older ones took a good 5 minutes to transfer if not more... If you have the new 3+ Black edition of GoPro you will want this one since you can do 4K footage. get it if your looking for FAST Read & Write!