SI4 Series
The SI4 series is engineered with 176-layer 3D NAND storage technology innovation, featuring industrial-grade SATA-III memory available in the M.2, 2.5” and mSATA form factors.
SATA-III
Interface
Industrial-grade
Design
3D TLC
Flash
Up to
0
MB/s
Sustained read
Up to
0
MB/s
Sustained write
176-LAYER NAND.
INDUSTRIAL SATA.
LEADING STORAGE DENSITY
The SI4 series is built with industry-leading 176-layer 3D NAND flash, providing exceptional performance and enhanced responsiveness.
Industrial hardware
The SI4 series is designed for industrial applications through and through, allowing it to excel in extreme temperatures and challenging environments.
Power loss protection
The SI4 series is available with optional hardware power loss protection for extra safeguards against power issues in critical applications.
Tailored according to your needs
Exascend's unique customization services allow the SI4 series to be optimized according to your needs.
Description
The industrial-grade SI4 series from Exascend powers challenging applications with true SATA-III performance in a rugged and stability-optimized package. With top-level performance, exceptional reliability, stability, and endurance, the SI4 series is a great choice for even the most demanding applications.
Series highlights:
- State-of-the-art 176-layer NAND flash
- Extended drive life with Exascend’s advanced flash management and global wear-leveling algorithm
- Unlimited customization options, including optional power loss protection (PLP) and adjustable over-provisioning
- TCG Opal 2.0 compliant and AES-256 encryption support; hardware secure erase and temper-proof firmware available
Download datasheet
Advanced technologies
Power Tuning
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.
Unlimited Over-Provisioning
Exascend offers unlimited over-provisioning (OP), allowing customers to set the ideal level of OP to match their application’s exact demands. No artificial limitations. Unlimited flexibility.
SuperCruise™
SuperCruise™ is a signature Exascend technology that optimizes write performance for stability – ensuring unbeatable stable write performance even in the most demanding applications.
AES-256
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.
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.
...and many more
The SI3 series also supports customized secure erase, data retention, firmware encryption, RAID ECC, multi-image firmware backup, TCG Opal-support, as well as ultra-fast response time.
Fully customizable
Powered by Marvell
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.
In-house hardware and firmware expertise
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.
Recommended applications
Industrial
Industrial applications demand unwavering performance in challenging environments.
Mission critical
Reliability comes second to none in mission critical applications – where failure is not an option.
Edge computing
The edge puts storage devices up against severe environmental challenges and unique demands.
Automotive
Development of next-gen autonomous and software-defined cars requires reliable data storage devices.
Transportation
Shocks, vibrations, and extreme temperature fluctuations demand only the best from storage devices.
Telecommunications
Next-generation telecom requires ultra-fast storage devices that excel in any environment.
Product information
Products
| Image | Model Name | Form factor | Capacity (GB) | Max. seq. read (MB/s) | Max. seq. write (MB/s) | TBW (max.) | Inquiry |
|---|---|---|---|---|---|---|---|
 | EXSI4B480GB-X | mSATA | 480 | 550 | 535 | 4400 | |
| EXSI4B240GB-X | mSATA | 240 | 550 | 300 | 2200 | |
| EXSI4B960GB | mSATA | 960 | 550 | 535 | 600 | |
| EXSI4B480GB | mSATA | 480 | 550 | 535 | 300 | |
| EXSI4B240GB | mSATA | 240 | 550 | 300 | 150 | |
| EXSI4B120GB | mSATA | 120 | 540 | 140 | 75 | |
 | EXSI4M960GB-X | M.2 (2280) | 960 | 550 | 535 | 8500 | |
| EXSI4M480GB-X | M.2 (2280) | 480 | 550 | 535 | 4400 | |
| EXSI4M240GB-X | M.2 (2280) | 240 | 550 | 535 | 2200 | |
| EXSI4M7680GB | M.2 (2280) | 7680 | 535 | 535 | 8000 | |
| EXSI4M3840GB | M.2 (2280) | 3840 | 550 | 535 | 2400 | |
| EXSI4M1920GB | M.2 (2280) | 1920 | 550 | 535 | 1200 | |
| EXSI4M960GB | M.2 (2280) | 960 | 550 | 535 | 600 | |
| EXSI4M480GB | M.2 (2280) | 480 | 550 | 535 | 300 | |
| EXSI4M240GB | M.2 (2280) | 240 | 550 | 300 | 150 | |
 | EXSI4A960GB-X | 2.5" | 960 | 550 | 535 | 8500 | |
| EXSI4A480GB-X | 2.5" | 480 | 550 | 535 | 4400 | |
| EXSI4A240GB-X | 2.5" | 240 | 550 | 535 | 2200 | |
| EXSI4A7680GB | 2.5" | 7680 | 535 | 535 | 8000 | |
| EXSI4A3840GB | 2.5" | 3840 | 550 | 535 | 2400 | |
| EXSI4A1920GB | 2.5" | 1920 | 550 | 535 | 1200 | |
| EXSI4A960GB | 2.5" | 960 | 550 | 535 | 600 | |
| EXSI4A480GB | 2.5" | 480 | 550 | 535 | 300 | |
| EXSI4A240GB | 2.5" | 240 | 550 | 300 | 150 |
Specifications
| SI4 Series | |||
| Edition | SI4 | ||
| Physical information | |||
| Form factor | 2.5″ | M.2 (2280) | mSATA |
| Interface | SATA-III, 6.0Gbps | ||
| Capacity | 240–7680GB | 240–7680GB | 120–960GB |
| Flash type | 3D TLC | ||
| Input voltage | 5V±5%; 3.3V±5% | ||
| Power consumption | Active <5W; Idle <0.9W | ||
| Performance | |||
| Maximum sequential read (MB/s) | 550 | ||
| Maximum sequential write (MB/s) | 535 | ||
| Max. 4K random read (IOPS) | 98,000 | ||
| Max. 4K random write (IOPS) | 72,000 | ||
| Reliability/endurance | |||
| Operational temperature (°C) | -40–85 | ||
| Storage temperature (°C) | -50–95 | ||
| UBER | <1 sector per 10^17 bits read | ||
| TBW (max.) | 8,500 | 8,500 | 4,400 |
| MTBF (hours) | 2,000,000 | ||
| Warranty (years) | 3 | ||
M.2 2260 and 2242 form factors available upon request.
Datasheet
Datasheet download
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