Read speeds up to 880 MB/s, Write Speeds up to 480MB/s, Sustained Write 100MB/s, Up to 4.4 times faster read speeds than fastest microSD Class 10, U3

Exponentially faster performance. Up to 8.8 times faster read speeds than our standard microSD UHS-I card and up to 4.4 times faster read speeds than our fastest microSD UHS-I card that have adopted a version of SanDisk QuickFlow technology, microSD Express cards support speeds comparable to our mainstream portable SSD.