The sheer speed and performance of 64GB SanDisk Ultra microSDXC UHS-I Memory Cards let you get more out of your smartphone or tablet. They offer all the memory you need to store thousands of high resolution photographs, days of music, hours of Full HD (1080p) videos and more. The cards Class 10 speed rating makes them ideal for shooting Full HD (1080p) video and high resolution photos, while outstanding transfer speeds (up to 48MB/sec) provide faster app loading times and improved performance on your mobile device. The adapter included ensures compatibility with SD card slots, letting you quickly transfer files from your phone to PC. Designed to keep on working even in testing conditions, 64GB SanDisk Ultra microSDXC UHS-I Memory Cards are waterproof, temperature-proof, shock-proof, vibration-proof and x-ray-proof.