SAS3x28R SAS Expander Scale your server backplane with the 28-port expander
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
| | Specification | Value |
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| 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 (Avago 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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