SanDisk Ultra SD Card Memory Card 16GB 32GB 64GB 128GB 256GB Class 10 Up to 120-150MB/s for Camera Extreme PRO High-Speed SD Card

Great choice for compact to mid-range point-and-shoot cameras Quick transfer speeds up to 120MB/s -150MB/s [32GB-512GB] Up to 512GB to store tons of pictures and Full HD video About capacity: 32GB = approximately 28GB-30GB 64GB = approximately 56GB-60GB 128GB = approximately 112GB-120GB 256GB = approximately 225GB-238GB 512GB = approximately 450GB-476GB This is calculation difference between manufacturer and your PC, please Google 'Memory card capacity' to get more information. Your PC says 1GB = 1.073741824 Billion bytes where Market Defines 1GB = 1.00 Billion bytes. Testing Method: The official factory default speed value is the ideal maximum value, the actual speed test process and the use of the environment-related (such as the use of equipment, different configurations, different types of file storage speed is different, because the type of file, size, size Different and different), so we can not guarantee the actual speed value! The speed show on our link is test by professional instrument, you'd better use 3.0 interface, then you can get a nice speed.