Sandisk Ultra SDHC Camera Memory Card - 64gb 140mbps

Up to 140MB/s read speed. Engineered with proprietary technology to reach speeds beyond UHS-I 104MB/s. Requires compatible devices capable of reaching such speeds. Write speed lower. Based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors. 1MB = 1,000,000 bytes.