Review on Gigastone 256GB Micro SD Card | 4K Video Recording | Compatible with GoPro, Action Camera, DJI, Drone, Nintendo-Switch | Up to 100/60 MB/s R/W Speed | MicroSDXC Memory Card UHS-I U3 A2 V30 C10 | Includes 5-Yrs Free Data Recovery by Ken Hamdan

Received this as a card for my Nikon D7500 camera. I decided to save a few bucks on Sandisk, mainly because so many Sandisks you buy on Amazon are counterfeit. So maybe the Chinese wouldn't fake an unnamed brand. In general, the card worked well. Put it in card checking software and it will indeed have the memory it has. The read/write speed seems to be normal, although I'm not an expert at it. What matters is whether it worked for its intended purpose (photos and videos on Nikon), the answer was yes. A video created without skipping frames. The saved photos are fine. I don't do a lot of video, but I do take a lot of photos, and having a card that can store vacation photos for little money is great. I remember the days when you had to spend hundreds of dollars to do the same thing.