Samsung Electronics has announced that it has started sampling a 256 GB SD Express microSD card that can deliver sequential read speeds of up to 800 MB/s. Mass production of 1 TB UHS-1 microSD cards that feature Samsung’s 8th generation 1-terabit V-NAND have also begun.
Performance of the new SD Express microSD card:
- 4x faster than traditional UHS-1 memory cards (up to 200 MB/s)
- 800 MB/s — 1.4x faster than SATA SSDs (up to 560 MB/s)
Availability:
- 256 GB SD Express microSD card: later this year
- 1 TB UHS-1 microSD card: Q3 2024
SD speed comparison:
Samsung on its 256 GB SD Express microSD card:
Thanks to its low-power design as well as firmware technology optimized for high-performance and thermal management, Samsung’s SD Express microSD card offers performance equivalent to SSDs in a small form factor. While read speeds for traditional microSD cards based on the UHS-1 interface were limited to 104MB/s, SD Express was able to boost it to 985MB/s, although commercial availability of the latter were not viable in microSD cards until now.
The sequential read speed of Samsung’s SD Express microSD card reaches up to 800MB/s — 1.4 times faster than SATA SSDs (up to 560 MB/s) and more than four times faster compared to traditional UHS-1 memory cards (up to 200 MB/s), allowing improved computing experiences in various applications, including PCs and mobile devices. To ensure stable performance and reliability for the small form factor, Dynamic Thermal Guard (DTG) technology maintains the optimum temperature for the SD Express microSD card, even during long usage sessions.
Samsung on its 1 TB UHS-1 microSD card:
Samsung’s new 1TB microSD card stacks eight layers of the company’s 8th generation 1-terabit (Tb) V-NAND within a microSD form factor, realizing the high-capacity package that used to be possible only in SSDs. The new 1TB microSD card passes the industry’s most rigorous test settings and offers reliable usage even in challenging environments, with features such as water protection, extreme temperature, drop-proof design, wear-out protection, as well as X-ray and magnetic protection.