The PA4 series is Exascend’s automotive-grade PCIe 4.0 storage lineup featuring extreme sustained read and write speeds and incredible storage capacity. With Exascend’s technologies, the PA4 series bridges the gap between the PCIe 4.0 interface and the future of the automotive industry. Available in the M.2 2280, M.2 2242, M.2 2230, E1.S and U.2 form factors.
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Advanced driver-assistance systems (ADAS) are integral to the future of the automotive industry, and high-performing storage sits right in the center of it. To log enormous amounts of data 24/7, you need powerful and reliable storage.
ADAS and data loggers demand incredible storage capacities to store all the data generated by the system and unrelenting storage performance to keep up with a constant flood of data.
The PA4 series is enhanced by Exascend's unique performance and stability-enhancing technologies.
With our dedication to customization, we are fully equipped to design, configure, and tune the PA4 series entirely according to your specification.
The PA4 series combines all the features and technologies that make Exascend’s enterprise-grade products great with the ultra-high performance PCIe 4.0 interface. The result is an extremely high-performing series of storage devices suited for any demanding enterprise application.
Series highlights:
To learn more about how the PA4 series can help bring your enterprise applications to the next level, please do not hesitate to send us a product inquiry and we will get back to you in no time.
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.
Our unique Adaptive Thermal Control™ technology tackles the issue of overheating and thermal throttling that is unavoidable in high-performance PCIe NVMe flash storage devices.
SuperCruise™ is a signature Exascend technology that optimizes write performance for stability – ensuring unbeatable stable write performance even in the most demanding applications.
Our unique level of control over hardware, firmware and manufacturing enables us to provide unmatched tuning services. By tuning the performance of our product specifically for your applications, we can achieve the highest possible performance to thermals and performance to power ratios.
Exascend’s secure storage solutions offer the highest level of data protection with virtually unbreakable AES-256 encryption, guaranteeing unbeatable encryption compliant with federal agencies’ stringent data security requirements.
The PA4 series also supports data retention, firmware encryption, RAID ECC, multi-image firmware backup, and other Exascend technologies.
Exascend’s unique strategic partnership with Marvell combines the best controllers in the industry with our hardware expertise and industry-leading firmware design. The result: flash storage devices ready for any challenge thrown at them.
Customization is at the heart of what we do. Our hardware and firmware teams are dedicated to your success and ready to develop solutions that tackle your challenges.
Data is now driving innovation and development of autonomous and software-defined cars.
Shocks, vibrations, and extreme temperature fluctuations demand only the best from storage devices.
Reliability comes second to none in mission critical applications – where failure is not an option.
Industrial applications demand unwavering performance in challenging environments.
Enterprise storage requires high performance and unwavering stability under constant loads.
High-resolution and high-FPS capture requires ultra-fast storage that never drops a single frame.
| Image | Model Name | Form factor | Capacity (GB) | Max. seq. read (MB/s) | Max. seq. write (MB/s) | TBW (max.) | Inquiry |
|---|---|---|---|---|---|---|---|
 | EXPA4E7680GB | E1.S | 7680 | 3500 | 3000 | 4800 | |
| EXPA4E3840GB | E1.S | 3840 | 3500 | 3000 | 2400 | |
| EXPA4E1920GB | E1.S | 1920 | 3200 | 3000 | 1200 | |
| EXPA4E960GB | E1.S | 960 | 3200 | 1800 | 600 | |
 | EXPA4R240GB | M.2 (2230) | 240 | 1600 | 300 | 150 | |
| EXPA4R480GB | M.2 (2230) | 480 | 2000 | 500 | 300 | |
| EXPA4R960GB | M.2 (2230) | 960 | 3200 | 1800 | 600 | |
 | EXPA4Q960GB | M.2 (2242) | 960 | 3200 | 1800 | 600 | |
| EXPA4Q1920GB | M.2 (2242) | 1920 | 3200 | 3000 | 1200 | |
 | EXPA4M7680GB | M.2 (2280) | 7680 | 2200 | 2200 | 4800 | |
| EXPA4M3840GB | M.2 (2280) | 3840 | 2800 | 2800 | 2400 | |
| EXPA4M1920GB | M.2 (2280) | 1920 | 3200 | 3000 | 1200 | |
| EXPA4M960GB | M.2 (2280) | 960 | 3200 | 1800 | 600 | |
 | EXPA4U7680GB | U.2 | 7680 | 3500 | 3000 | 4800 | |
| EXPA4U3840GB | U.2 | 3840 | 3500 | 3000 | 2400 | |
| EXPA4U1920GB | U.2 | 1920 | 3200 | 3000 | 1200 | |
| EXPA4U960GB | U.2 | 960 | 3200 | 1800 | 600 |
| PA4 Series | |||
| Edition | PA4 | ||
| Physical information | |||
| Form factor | M.2 (2280, 2242 & 2230) | E1.S | U.2 |
| Interface | PCIe 4.0 (NVMe 1.4) | ||
| Capacity | 240–7,680GB | 1,920–7,680GB | |
| Flash type | 3D TLC | ||
| Input voltage | 3.3V±5% | 12V±5% | |
| Power consumption | Active <12.0W; Idle <1.0W | ||
| Performance | |||
| Maximum sequential read (MB/s) | 3,200 | 3,500 | |
| Maximum sequential write (MB/s) | 3,000 | 3,000 | |
| Max. 4K random read (IOPS) | 400,000 | 500,000 | |
| Max. 4K random write (IOPS) | 48,000 | 55,000 | |
| Reliability/endurance | |||
| Operational temperature (°C) | -40–85 | ||
| Storage temperature (°C) | -50–95 | ||
| UBER | <1 sector per 10^17 bits read | ||
| TBW (max.) | 2,400 | 4,800 | |
| MTBF (hours) | 2,000,000 | ||
| Warranty (years) | 3 | ||
