Sandisk Extreme Pro SDXC 128GB Card UHS-I Ultra High Speed U3 V30 Class10 4K Compatible

Capacity 128GB;Reading speed up to 170MB / s;Write speed up to 90MB / s;Handling of large-capacity flash memory: If you insert an SDXC card into a product that does not support the SDXC standard, the data in the SDXC card will be damaged. In that case, it may be formatted and recognized according to the SDHC standard, but the data in the SDXC card will be damaged regardless of this operation. Never plug it in.;* To experience the speed of 170MB / s, please check the following two points: 1) Please check in advance whether the speed of the USB port installed in your computer is 170MB / S or more. 2) Please prepare Sandisk's SDDR-C531 card reader. * At the moment (2019/06), the only UHS-1 card reader that has reached 170MB / sec is Sandisk's SDDR-C531. If the speed is lower than the measured speed value shown, it may indicate a problem with the PC USB port performance or the card reader.