The MicroSDXC Ultra Plus 64 GB memory card offers fast and reliable storage for your mobile devices. With a transfer speed of up to 150 MB per second, you can quickly and easily save and transfer files. This memory card has an A1 rating, which means it is optimized for apps and provides faster app performance. It is also Class 10 and UHS-1, making it ideal for recording and playing back Full HD videos. Perfect for smartphones, tablets, and other compatible devices that need extra storage space.