PA4 Series

The meticulously designed PA4 series, equipped with a PCIe 4.0 interface, is tailored for challenging automotive and mission-critical applications, prioritizing ruggedization and ample capacity. It comes in versatile M.2 2280, M.2 2242, M.2 2230, E1.S, and U.2 form factors to cater to diverse requirements. Product Specs and Datasheet →

Exascend’s automotive-grade PCIe 4.0 storage PA4 series available in the M.2 2280, M.2 2242, M.2 2230, E1.S and U.2 form factors.
PCIe 4.0
NVMe 1.4


176-layer 3D TLC

NAND Flash

Automotive grade


Up to

0 TB


Up to

0 MB/s

Sustained performance

Revolutionizing Automotive Storage with PCIe Gen4 Solutions

Unrivaled Ruggedization

The PA4 series meets rigorous military-grade standards, featuring MIL-STD-810 compliance, conformal coating, and underfill technologies for unparalleled protection against environmental challenges like humidity, shock, and vibration.

Efficient Power Draw - Less Than 8W

With Exascend's proprietary technologies, the PA4 achieves maximum performance while drawing less than 8W of power, providing enhanced energy efficiency.

Fully 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.

High-Performance NVMe SSDs Tailored for Automotive Applications

Series highlights:

  • High sustained PCIe performance, boasting sequential read/write speeds up to 3500 MB/s and 3000 MB/s
  • Available in high-capacity configurations up to 15.36TB for U.2, and 7.68TB for E1.S and M.2 2280 form factors
  • Rugged design crafted for automotive environments, featuring conformal coating and underfill technologies, enduring temperatures from -40°C to 85°C
  • Temperature monitoring and intelligent management powered by proprietary Adaptive Thermal Control™ technology
  • TCG Opal 2.0 compliant with AES-256 encryption support; hardware secure erase and temper-proof firmware available
  • Enhanced power efficiency ensuring optimal performance
  • Manufactured in an IATF 16949 certified facility

Product Specs and Datasheet →

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

Featured Storage Technologies


Withstanding Humidity, Shock and Vibration

Built to the highest military-grade standards, our products boast MIL-STD-810 compliance, conformal coating, and underfill technologies, providing unparalleled protection against humidity, shock, vibration, and environmental factors.


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.


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.


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.

Product Information

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