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SD Association announces MicroSD Express

At the Mobile World Congress, the SD Association announced the new MicroSD Express format, which promises extremely fast data transfer rates when paired with phones, cameras and other compatible devices. Memory cards with the new format depend on the faster PCIe and NVMe interfaces of SSDs and can provide speeds of up to 985 megabytes per second.

MicroSD memory has always been considered slower than the traditional internal memory of modern devices. But the new MicroSD Express standard is changing that. As the best example, Western Digital announced the 1

TB SanDisk Extreme UHS-I microSDXC card during the Mobile World Congress. The card can only record data at a speed of 160 megabytes per second, which is not close to the speed of MicroSD Express of 985 megabytes per second.

Not only will the new MicroSD Express cards be much faster, they will also need less power compared to traditional MicroSD memory cards with the same maximum power consumption. It is backwards compatible with older MicroSD interfaces and available in several formats, including MicroSDHC Express, MicroSDXC Express and MicroSDUC Express. All this means that you can use MicroSD Express cards on older devices, but at lower speeds.

"NVMe is the industry-recognized SSD performance interface, delivered in millions of units from the client, data center, and mobile device." Amber Huffman, President of NVM Express Inc. "With the introduction of NVMe SDA technology in the new MicroSD Express cards allows users to detect lower latencies and increasingly faster transfer speeds for different applications. "

According to the SD Association, the new MicroSD Express standard will also provide system developers with new options with PCIe and NVMe capabilities. These include bus mastering, multi-queue (without lock mechanism) and host memory buffers. Since this means that MicroSD Express cards do not have to communicate through CPU tasks, it offers huge potential for gaming systems, multi-channel IoT devices, higher-resolution video, action cameras, and virtual reality.

"MicroSD Express gives the mobile industry a compelling new choice to equip mobile devices with replaceable SSDs," said SDA President Hiroyuki Sakamoto. "SD 7.1 is preparing mobile device customers and manufacturers to meet the increasing storage needs of the next few years."

It is not yet known when manufacturers will produce memory cards with the new format.

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