The SanDisk memory card is a secure and small data-storing device. The card type is micro SDXC. This small format means that it will fit into mobile phones and other smaller electronic devices. It's speed when downloading data is 90 MB/s. Downloading from it is at a speed of 160 MB/s. The SanDisk MicroSDXC 128GB Extreme A2 UHS-I (V30) U3 + SD Adapter is of the speed class of Class 10. Thanks to the specifications, it's well-suited for very demanding work like the storage of 4K video. The SanDisk memory card is waterproof, highly resistant to impacts, and it will work at hot temperatures. It is important to note that it is also resistant to X-rays and magnetism. The packaging includes a handy SD adaptor.