1GB per second … Micro SD Express

The SD Association has announced the microSD Express, a new standard that supports a maximum transfer rate of 985MB / sec during the MWC2019 in Barcelona, Spain.

Like the SD Express released last June, Micro SD Express is defined in the SD7.1 specification, and its maximum transfer rate is 985MB / sec. Almost a second to be able to transfer nearly 1GB. If the transmission speed is about this level, it can be expected to be utilized in a large-capacity data field such as video shooting or VR content.

Micro SD Express is available in a variety of capacities including Micro SDHC Express, Micro SDXC Express, and Micro SDUC Express. Micro SD Express adopts the standard PCI Express 3.1 specification and the NVMe Rev.1.3 specification on the second pin. Since PCIe suppresses power consumption according to the L1 sub-state, Micro SD Express is expected to suppress energy consumption more than before.

System developers will be able to use new options for PCIe and NVMe adoption, including bus mastering, multi-queue, and host memory buffers. Of course, compatibility with existing micro SD cards is maintained. Micro SD Express is expected to be used as a data storage medium for smart phones, drone, VR cameras, and self-driving vehicles that require high-speed communication. For more information, please click here .