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 (8 GB and 16 GB) technologies. Product Specs and Datasheet →

Interface
NAND flash
Wide temperature
Up to
Capacity
Up to
Performance
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 provides 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.
microSD Cards For Demanding Edge And IoT Applications
Exascend’s microSD300 series excels in edge and IoT applications, with superior endurance, reliability, and stamina for 24-hour surveillance, industrial drones, action cameras, and gateways. It operates in wide temperatures from -40°C to 85°C, is hardened to withstand harsh environmental conditions, and has an IP67 rating for full protection against harmful particles, dust, and water.
Product highlights:
- Up to 90 MB/s read and 80 MB/s write speeds
- Capacities: 8 GB to 256 GB (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
- Manufactured in IATF16949-certified production line






Engineered for the real world
Waterproof
Dust-resistant
Climate-hardened
Impact-resistant
X-ray-safe
Magnetism-proof
Featured 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.
Recommended applications
Product information
Series | microSD300 |
Interface | SD 3.0/6.0 microSDXC/SDHC UHS-I |
Dimensions | 11 mm (L) x 15 mm (W) x 1 mm (T) |
Capacity | pSLC: 8GB to 16GB TLC: 32GB to 256GB |
Flash type | 176-layer 3D TLC |
Input voltage | 2.7–3.6V |
Read/Write speed up to | 90/80 MB/s |
Speed Class | C10 / U3 / V30 |
Performance Class | A2 |
Operational temperature | -40°C to 85°C |
Storage temperature (°C) | -50°C to 95°C |
Features | Built-in LDPC error correction Firmware power loss protection Firmware read disturb protection Secure erase |
TBW (max.) | 610 TB |
DWPD | 2.1 |
Warranty | 3 years |
Download datasheet
Image | Model Name | Form factor | Capacity (GB) | Max. seq. read (MB/s) | Max. seq. write (MB/s) | TBW (max.) | Inquiry |
---|---|---|---|---|---|---|---|
![]() | EX256GUSDV30-IDE | microSD | 256 | 90 | 80 | 610 | |
![]() | EX128GUSDV30-IDE | microSD | 128 | 90 | 80 | 300 | |
![]() | EX64GUSDV30-IDE | microSD | 64 | 90 | 80 | 145 | |
![]() | EX32GUSDV30-IDE | microSD | 32 | 90 | 80 | 73 | |
![]() | EX16GUSDV30-PIDE | microSD | 16 | 90 | 80 | 320 | |
![]() | EX8GUSDV30-PIDE | microSD | 8 | 90 | 80 | 155 |
Resources download
Title |
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Exascend Industrial SD300 & microSD300 – Product Brief |
SMART tool |