1.0 SX05-0B00-00 Overview: Inside the SAS35xR Expander Series
In the 2026 landscape of enterprise data centers, the SX05-0B00-00 (Broadcom SAS35x24R) serves as a critical junction for high-capacity storage subsystems. As a core component of the SAS35xR expander family, this IC is designed to facilitate seamless communication between hosts and vast arrays of SAS or SATA drives.
The primary challenge for storage architects today is managing the exponential growth of unstructured data while maintaining low latency. The SX05-0B00-00 addresses this by providing a high-performance 12Gb/s SAS interface, ensuring that storage backplanes can keep pace with modern NVMe-hybrid and All-Flash Arrays (AFA). You can access the official datasheet and technical support resources at aichiplink.com.
1.1 12Gb/s Performance: Optimizing Throughput for All-Flash Arrays
The SX05-0B00-00 operates at 12Gb/s per lane, doubling the bandwidth of previous 6Gb/s generations. This is vital for 2026-era applications like real-time AI analytics and high-definition video streaming, where localized storage bottlenecks can stall entire compute clusters.
2.0 Key Features: GPIO, SATA Compatibility, and Multi-Protocol Support
The SX05-0B00-00 is more than just a data router; it is a versatile I/O expander. It integrates support for 8-bit GPIO, allowing system designers to control LEDs, fans, and sensors directly through the expander, simplifying backplane PCB design.
2.1 Scalability and Topology: Managing Up to 24 SAS/SATA Ports
With the ability to manage up to 24 independent ports, the SX05-0B00-00 allows for massive horizontal scaling. It supports I2C and UART serial interfaces, making it compatible with a wide range of management microcontrollers. Its robust architecture ensures that adding more drives to the system does not lead to significant signal degradation or packet loss.
3.0 Thermal Management and Robustness in Demanding Environments
Enterprise storage racks in 2026 are denser than ever, pushing thermal boundaries. The SX05-0B00-00 is built on a power-optimized CMOS process, keeping operational heat to a minimum.
- Package Type: FPB4NGS / BGA
- Operating Resilience: Designed for 24/7 mission-critical environments.
- Thermal Design: Requires standard active or passive cooling depending on port density and chassis airflow.
4.0 Sourcing SX05-0B00-00: 2026 Inventory and Pricing Trends
As we enter 2026, the SX05-0B00-00 remains a stable yet highly sought-after part for maintaining legacy 12Gb/s SAS infrastructure and building cost-effective high-capacity storage servers.
"For procurement teams, the SX05-0B00-00 represents a 'legacy-premium' component. While lead times have stabilized at approximately 53 weeks, price fluctuations are common due to its critical role in existing server storage backplanes. Securing NIB (New in Box) units is essential to avoid counterfeit or salvaged parts from the secondary market."
Conclusion
The SX05-0B00-00 continues to be a foundational element for enterprise storage in 2026, offering the perfect balance of port density, protocol versatility, and proven reliability. Whether you are maintaining a legacy array or designing a new high-capacity JBOD, the SAS35x24R architecture inside the SX05-0B00-00 provides the throughput and stability required for the modern data era. Contains forward-looking statements regarding the longevity of 12Gb/s SAS in the hybrid-cloud storage market.
Written by Jack Elliott from AIChipLink.
AIChipLink, one of the fastest-growing global independent electronic components distributors in the world, offers millions of products from thousands of manufacturers, and many of our in-stock parts is available to ship same day.
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Frequently Asked Questions
Is the SX05-0B00-00 compatible with SATA drives?
Yes, it features multi-protocol support, allowing it to bridge both SAS and SATA 6Gb/s or 3Gb/s drives within the same topology.
What is the difference between SX05-0B00-00 and SS05-0B00-00?
The SX05 series are SAS expanders for storage, while the SS05 (PEX88048) series are PCIe Gen 4 switches for data center fabric.
How many GPIO pins are supported?
The chip supports 8-bit GPIO for flexible input/output configurations such as enclosure management and status indicators.
Where can I download the SX05-0B00-00 datasheet?
Technical documentation and pin-out diagrams for the SAS35xR family are available through the aichiplink.com resource portal.
Does it support 24Gb/s SAS-4?
No, the SX05-0B00-00 is a SAS-3 generation device optimized for 12Gb/s throughput.
