microSD300 SERIES

By utilizing industrial-grade hardware and Exascend’s proprietary firmware design, the microSD300 series offers an optimal blend of sustained high performance, durability, and compactness. Taking advantage of 176-layer 3D TLC NAND flash technology, the microSD300 features advanced LDPC ECC, wear leveling, IOPS optimization, secure erase, and pSLC (8GB and 16GB) technologies. Product Specs and Datasheet →

SD 6.0


176-layer 3D TLC

NAND flash

-40°C to 85°C

Wide temperature

Up to

0 GB


Up to

0 MB/s


Robust Industrial microSD Cards for Challenging Environments

Maximum Ruggedness for Harsh Environments

Crafted for exceptional performance in industrial environments (-40°C to 85°C), the microSD300 cards are IP67 rated for dust and water resistance, along with X-ray safety certification.

Optimized for Industrial Workloads

The microSD300 series carries speed class of V30/U3/C10 and performance class of A2, capable of supporting continuous 24/7 video recording and processing high-resolution images and 4K footage at the edge.

Fixed BOM Solutions

We provide customers with steadfast Fixed BOM (Bill of Materials) solutions that ensure both product performance and long-term support.

Smart Health Monitoring

Easily track and monitor the health of your Exascend microSD300 cards with our SMART Tool software with a GUI.

Rugged microSD Cards for Demanding Edge and IoT Applications

Product highlights:

  • Up to 90 MB/s read and 80 MB/s write speeds
  • Capacities: 8GB to 256GB (8GB and 16GB in pSLC mode)
  • Speed class: V30/U3/C10, performance class: A2
  • Wide temperature-support: -40°C to 85°C
  • Unwavering industrial-grade reliability and endurance, with a mean time to failure of 2 million hours
  • IP67 rating for full protection against harmful particles, dust, and water
  • Manufactured on IATF16949-certified production line

Product Specs and Datasheet →

Engineered for the Real World







Featured Storage technologies


Wide Temperature

Exascend’s wide temperature technology leverages a unique combination of high-quality components, purpose-designed hardware and highly-optimized firmware to deliver unmatched wide temperature performance and stability.


Pseudo SLC (pSLC)

Our pSLC technology leverages the advantages of SLC and contemporary 3D TLC flash to enhance sustained performance, reduce storage latency, and enhance endurance, particularly for 8GB and 16GB cards.


Firmware power loss protection

Exascend's firmware power loss protection enables the flash storage device to quickly rebuild the mapping table when power is restored, ensuring seamless card functionality for the application.


Data integrity

By employing LDPC ECC and firmware read disturb protection, Exascend's memory cards can achieve high levels of data integrity, ensuring that the data remains intact and reliable even in the presence of errors.


Secure erase

Exascend provides customizable secure data sanitization, offering various options such as normal erase and software-triggered erase. This ensures fast and fully secure data purging.

Product information

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