- 128GB Micro SDXC UHS-I U3 V30 A1 Memory Card - High Speed TF Card for Phone, Camera

Using these in security cameras. Formatting, size and storage have been flawless.

Great buy, although one of the cars stopped working in my camera about a month or so after using it. The other two are still ok. Storage capacity is good for what I need.

These KOOTION Micro SD cards offer excellent performance. The read and write speeds are very fast, ideal for 4K recording and use in cameras, mobile phones, or security devices. The 3-pack with included adapter provides great value for the price. They are reliable, stable, and work perfectly right out of the box. A highly recommended purchase.

These seem too work well, IF your device accepts them properly. They all worked well after I removed a couple of them and reinstalled, "maybe my fault 🤔?"

Works pretty good. I’m really happy with it. No complaints whatsoever so you people out there if you read this, please buy this product. I do not work for the company. Take my word.

Great little memory cards. They do exactly what they’re supposed to do. Rarely glitch in my home cameras, fit perfectly. Great for video recording.

Works good with DJI mini 4k upload speed is a little slower

Well, of course I was super excited to receive this and up the storage on my phone (for a low cost too). I was nervous about moving my files so I waited longer than I should have to pull the trigger. Finally, when my other SD card just couldn't save any more, I knew I had to make the switch. I successfully moved everything over to the card and inserted into my phone. I noticed initially that the items didn't move over immediately, so I checked all my settings; everything seemed good. Tinkered around with my phone and kind of just gave up. A bit later, I saw that the files (photos, videos, etc.) had successfully transferred in to the phone so I assumed it had just needed a little time since it was a large amount of data. Well, fast forward 2 weeks and I am simply looking at FB like I sometimes do. I realized I needed a photo for my business, so I went to my gallery. To my shock, the majority of my photos and videos were gone. All the photos I know I had saved to the SD card were just gone. I had not changed any setting, formatted the card, and I am 100% positive they were there the previous day/night. I decided to go to my phone carrier to see if, by some chance, I had done something in error. NOPE!!!! Associate showed me that the card was not registering on any device; not just my phone! So save your money, and use it towards the name brand options for only a few dollars more. Luckily I saved all my stuff to a hard drive before I copied it to the SD card, but I still lost everything I had saved in those 2 weeks of the card somehow working with my phone! So pissed!!! I am out my SDcard/money AND my data!