I use this card for my GoPro 6 and it records 4k, 24fps and 30fps videos as expected with no issues or crashes. I bought two of these but with the capacity it's rare that I have to change them. Running 4k 24 or 30 fps I get about 4 hours of video from each 128GB card. Now that I've tried this brand, I don't feel ready to take a risk with any other brand. I also love how they sent an email right after the purchase to check everything was ok. The adapters that come with the cards are really good and I use them to store my cards when not in the camera so I don't lose tiny cards. I tried 4k 60fps and it recorded well too. Tip: When you receive the card, you must format the card in your camera or device before writing anything on it, and then do a test run by recording and transferring videos. You really have to do this for every card you buy.
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