SANDISK microSDXC CARDS FOR NINTENDO SWITCH - 128 GB Capacity: 128 GBRead Speed: až 100MB/s*Write Speed: až 90MB/s*Video Speed: U3Form Factor: microSDXC*1GB=1,000,000,000 bytes. Actual user storage less 1128GB: Up to 100MB/s read speed; up to 90MB/s write speed. 64GB: Up to 100MB/s read speed; up