SI4 Series

The SI4 series is a cutting-edge storage solution incorporating advanced 176-layer 3D TLC NAND technology, designed for industrial applications. It offers versatile form factors, including M.2 2280, 2.5-inch, and mSATA, with storage capacities ranging from 120GB to an impressive 7.68TB. Product Specs and Datasheet →



176-layer 3D TLC

NAND Flash

-40°C to 85°C

Wide temperature

Up to

0 TB


Up to

0 MB/s

Sustained performance

Leading Storage Innovation for Industrial SATA SSD

Unmatched Density and Capacity – Up to 7.68TB

The SI4 series is engineered with cutting-edge 176-layer 3D NAND flash, providing high capacities of up to 7.68TB for exceptional performance and enhanced responsiveness.

Efficient Power Draw – Less Than 4W

With Exascend's proprietary technologies, the SI4 achieves maximum performance while drawing less than 4W of power, providing enhanced energy efficiency.

Customizable Flash Storage Solutions

By collaborating with top-tier NAND flash manufacturers and SSD controller creators, we have engineered a bespoke firmware architecture that seamlessly unites advanced hardware and innovative design. This empowers flash storage, providing tailored solutions for success.

Rugged SATA SSD Optimized for Industrial Applications

Series highlights:

  • State-of-the-art 176-layer NAND flash technology
  • High capacities up to 7.68 TB, especially in M.2 2280 and 2.5-inch form factors
  • Rugged design tailored for industrial environments, withstanding wide temperatures from -40°C to 85°C
  • Extended drive lifespan through Exascend’s advanced flash management and global wear-leveling algorithm
  • Extensive customization options, including optional power loss protection (PLP) and adjustable over-provisioning (OP)
  • TCG Opal 2.0 compliant with AES-256 encryption support; hardware secure erase and temper-proof firmware available
  • Enhanced power efficiency ensuring optimal performance

Product Specs and Datasheet →

Note: Promotional label not included with product. Actual product labeling may differ from marketing images.

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.


Optimized Thermal and Write Performance

Our Adaptive Thermal Control™ technology enhances system thermals, airflow, and acoustics, reducing BOM costs. The SuperCruise™ algorithm optimizes write performance, boosting long-term stability and overall reliability.


Enhanced Power Efficiency

Our control in hardware, firmware and manufacturing allows unmatched power tuning services. Tailoring product performance for your applications achieves optimal performance-to-thermal and performance-to-power ratios.


Data Security and Encryption

TCG Opal 2.0-compliant, our self-encrypting drives (SEDs) support AES-256 encryption, BitLocker, and IEEE 1667. Customize with pre-boot authentication (PBA), data sanitization, and Tamper-Proof Firmware for enhanced security.


Uncompromised Data Integrity

Leveraging RAID5 at a flash memory block level, our unique RAID ECC recovers severely corrupted data. In sudden power loss, our hardware and firmware power loss protection (PLP) ensures data integrity.

Product Information

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