"Micro SD 512GB San Disk EXTREME Pro MicrosdXC A2 SDSQXCZ-512G Overseas package product" ▼ 619659173821 ▼ (Product Description) ・ Red/Black SDSQXCZ-512G-GN6MA ・ Displayed on OS of all storage products The capacity is written It will be less than the capacity. This is because flash memory and hard drive manufacturers' memory megabytes are different.. The OS is 1 MB (1000KB [1000x1,000 bytes]) of 1000KB, but it is actually 1 024KB.. Therefore, for example, the 512MB storage device is displayed as 488.28MB (512 000 000 00 1 000 ÷ 1 024 ÷ 1 024 = 488 281 250 bytes).. In addition, 1%to 3%capacity may be used below.. (1) Firmware (2) Software application (3) Data storage reliability is higher than the memory capacity of the normal specifications.. Therefore, the actual memory capacity (user area) that can be used will be about 93 % of the title capacity.. Not abnormal. * In order to experience the speed of 170MB/s, please check the following two points: 1) Please investigate whether the USB port speed installed on your computer is 170MB/s or more.. 2) Please prepare a Sandisk SDDR-B531 card reader. * The only UHS-1 card reader that reached 170MB/sec at the current time (2019/06) is [Sandisk SDDR-B531].. Large -capacity flash memory ...

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