SAS4x48 Expander Maximize the available throughput to the host with SAS-4

Deliver the highest class of expander scalability and performance available with the SAS4x48 expander, featuring the most SAS ports in Broadcom’s new SAS4xNN, pin-compatible SAS/SATA family of SAS-4 expanders. The 24G SAS interface supports 6G, 12G, 24G SAS and 6Gb/s devices and data transfer rates. The SAS4x48 supports PHY and T-10 zoning across 255 zones, any-to-any port mirroring, spread spectrum clocking, and enhanced, multi-purpose GPIO architecture. The DataBolt2 bandwidth optimizer (up to 40 ports) enables bi-directional data buffering at the SAS-4 data rate to end devices operating at 6Gb/s or 12Gb/s and employs a new design to further lower latency and increase performance, even in mixed-controller topologies. The 4x48 expander is supported by an industry-leading SAS-4 Software Development Kit (SDK), a comprehensive, feature-rich tool designed to efficiently accommodate OEM-specific firmware implementations, or to be used as provided.

• Enable higher enclosure capacities through 48 any-to-any PHY edge expansion
• Double the effective bandwidth over prior 12Gb/s expanders without compromising energy efficiency or package size
• Provide high device throughput with SAS and SATA support up to 12Gb/s, including wide port support
• Aggregate bandwidth from lower-speed drives for higher total performance with DataBolt2 technology
• Enhance the consistency of system performance in cascaded topologies (SPL-4 Fairness)
• Hardware Secure Boot maintains the designated root-of-trust throughout the life of the product