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microSD Express Cards Will be Faster, Use Less Power

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Feb 25, 2019, 7:23 AM by Rich Brome

The SD Association today announced microSD Express, a new memory card format that's faster, more efficient, and backward-compatible with today's microSD format. The new cards will be capable of delivering a 985 megabytes per second (MB/s) maximum data transfer rate, and should use less power on average when using the new fast mode. microSD cards will have two rows of contacts; the new second row supports the PCIe 3.1 and NVMe v1.3 specifications for the faster, more power-efficient access, while the first row of contacts will support standard SD access for backward compatibility with devices that don't support microSD Express.

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