SAS3x28R SAS Expander

Scale your server backplane with the 28-port expander

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Designed for connecting multiple targets and hosts, and featuring a small footprint, the SAS3x28R expander provides high performance expansion for the most demanding storage applications. DataBolt bandwidth optimizer technology aggregates bandwidth to provide 12Gb/s SAS performance to the host when using 6Gb/s and 3Gb/s SATA end devices, making it ideal for high-capcity and other storage applications. Optimized for server backplanes with limited space, this 28-port expander’s scalability, fault tolerance, and software support will make your storage applications perform like never before. The 3x28R expander is supported by an industry-leading Software Development Kit (SDK) and tool suite for easy integration, de-bug and troubleshooting.
 
  • Enable higher enclosure capacities through 28 PHY edge expansion
  • Provide high device throughput with SAS and SATA support up to 12Gb/s, including wide port support
  • Leverage DataBolt technology to aggregate bandwidth from lower-speed drives for higher total performance
  • Ensure ample enclosure bandwidth through 2MB of integrated RAM and an ARM Cortex-R4 300 MHz processor

Lifecycle Status

Active

Specification Value
Lifecycle Active
Distrib. Inventory No
Samples Available Yes
Storage Enclosure Processor (SEP) ARM Cortex-R4 @ 300MHz
Instructions 1.6 DMIPs/MHz
Internal Memory 2MB SRAM
SAS Ports 28
Wide Port Support Yes
Port Mirroring Yes (Broadcom IP)
Direct, Table, & Subtractive Routing Methods Yes
SSC (Spread Spectrum Clocking ) Yes
8-bit SEP interface Yes
Route Table Entries 2048
A/D Converter 1, (2 analog inputs)
Data Transfer Rates SAS up to 12Gb/s
PHY-Based Zoning, T-10 Zoning Yes
External Memory Interfaces 8-bit and 16-bit Flash, w/ 6 Chip Selects SRAM, NVSRAM
GPIO 16
12C Interfaces 5
LED 1 Pin per Phy
Package 27x27 mm
Security Features TRNG/Hash & HMAC Generator/Secret Root Key
T-10 Optical Support Yes
UART Interfaces Yes
Pulse Width Modulator 2
SGPIO Interfaces 2 x SFF-8485

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