Angrry.exe™ Posted April 12, 2019 Share Posted April 12, 2019 The storage capacity of microSD cards has steadily increased over the past few years, but transfer rates have remained almost unchanged, with the fastest microSD cards rising to as high as 300MB / s. This may change with the commercial debut of the first microSD Express cards, which promise up to 985 MB / s of transfer rates. The new cards will retain the existing microSD format, but will come with an additional pin set to allow connectivity through a PCIe NVMe 3.1 bus. Also, microSD Express will offer lower power consumption thanks to power states in PCIe 3.1 (L1.1 and L1.2) MicroSD Express storage media will be suited for intensive, multitasking, and application storage scenarios. Moreover, they also borrow some of the SSDs: Multi Queue Support: Each processor core can store commands in the host's RAM (smartphone, camera, etc.), and the card controller can retrieve and execute Host Buffer Host: Allows you to use the RAM of the caching system Bus Mastering: Provides access to RAM / DMA, enabling data sharing directly between system devices (modem, camera, etc.) and storage So far, there is no device to support the new standard, but despite the additional pins, the microSD Express will be inversely compatible with all devices with microSD slot at a lower speed of course. Link to comment Share on other sites More sharing options...
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