Review on 💽 3-Pack of JBOS 64GB Micro SDXC Cards - High Speed UHS-I Memory Cards, C10 U3, Compatible with Smartphone, Bluetooth Speaker, Tablet, PC, Drone, Camera by Mark Clark

The first thing I do with every new memory card is check if it is full to make sure it actually has the reported space. 64GB cards will always read somewhere in the 59-60GB range, but the important point is that the memory claimed is there and usable. You can also see that the test almost reached the maximum sequential read and write speeds, which I always see as promising. CrystalDiskMark reports show excellent sequential speeds, although random read/write speeds are a bit weak. However, for the intended application of filling an empty card from the camera and then copying the full card to a hard drive, this is sufficient!