The values are the maximum read/write speeds when using the card readers specified by KIOXIA. For more details, please refer to ‘the Lists of Specific Card Readers and Tested Card Readers.’ When you connect a device other than the specified card reader, the maximum read/write speeds are the values operating with SDR104 mode. SDR104 mode is one of the bus interface modes defined by the SD standards. Based on our test result. (1 MB/s = 1,000,000 byte/s)