KOOTION 64GB Micro SD Card, UHD Video for GoPro, Action Camera, Drone, Smartphone, R/W up to 80/20MB/s MicroSDXC Memory Card UHS-I U1 Class 10

I've been using these 64GB Ultra Micro SD cards for a few months now, and they've proven to be a dependable choice for expanding storage on my devices. The 2-pack offers great value, providing ample space for apps, photos, and videos. I've used them in my smartphone and tablet, and they work seamlessly, with fast read and write speeds ensuring smooth performance. The included adapters are a handy bonus, allowing for easy use in devices with standard SD card slots. Overall, these cards deliver consistent and reliable performance, making them a solid choice for anyone needing extra storage.

Bought these to use with outside security camera. Recommended from separate reviews as ideal size for that application. Easycto install. Security camera formatted once installed. Good value.

Low cost SD for security camera, no problems.

These work just fine. But at this price they probably are not up to professional use. But you do get what they claim. With the brand names it's becoming difficult to be sure they are the real thing. So having these at a reasonable price nobody is going to fake these. More than happy to recommend these for everyday use.

Arrived very quickly and well packed. The card with two cards and a larger holder was very secure and a pain to open. Very well protected from the customer. Work well so far.

Really good product and works well in my home cameras.Enable me to play back and watch what’s happening whilst I’m at work.Really good value

All have done what they are supposed too. Great for security cameras. Easy to use good quality easy to format.

This pack of 2 x 64GB Micro SD cards were ordered for use in my WiFi CCTV cameras and video door bells, to keep recording NON STOP in a loop. When I say "loop", this will record for a few days, and then the old recordings will "drop off" to allow space for the latest recordings, so it is always possible to keep fairly up to date.They are meant to support up to 80MB/s, and they are also available, at the time of writing in 16GB, 32GB, 128GB, 256GB, and my 64GB versions were chosen not just because they were on a good price but also because there was an 'AMAZONS CHOICE' logo next to the listing, and that alone has never let me down, well sadly until now. Both cards refused to format, please see included image, they refused to format even on my laptop, which can format just about anything, and would not format in any item that uses a micro SD card, and yet, when I tried other makes, they formatted perfect. Please avoid at all costs. I have had thesea good week now, and have tried everything, so I have given these micro SD cards a chance, as they say. I am returning them to the makers for a refund, as this truly is unacceptable, especially when other makes of micro SD cards work without question.