Integral High Speed SDXC cards 64GB, 128GB, 256GB, V30, U3, UK Seller
HIGH SPEED SDHC/XC V30 UHS-I U3. Minimum 30MB/s write speed (U3). Video Speed Class 10 (V30). 5 year warranty Up to 100MB/s transfer speed (write speed lower). Based on internal testing; performance may be lower depending on host device.