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Intel® RAID Controller RS25NB008

2nd generation SAS-2/SATA-3 card with eight external ports

Key features

  • LSI* SAS2208 dual-core RAID-on-chip (ROC) controller providing SAS 2.0 compliance, including 6-Gb/s data transfer
  • Embedded 1-GB 800 MHz cache (ECC DD3 memory)
  • Two SFF8088 SAS/SATA connectors for up to eight external ports
  • Speaker to deliver audible alerts
  • x8 PCI Express* Gen 3 interface for fast communication with the server board
  • Optional: Intel® RAID Smart Battery AXXRSBBU9 offering cache protection with up to five years of service life

Target applications

Scalable performance.

Data protection feature highlights

  • Online capacity expansion
  • Hot-spare support: global and dedicated
  • Single controller multipathing (failover)
  • Enclosure management
  • Background consistency checking
  • Patrol read for media functionality
  • Self-Monitoring, Analysis, and Reporting Technology (SMART) support

Key advantages

Exceptional data protection

Supports data redundancy using SAS or SATA hard disk drives through mirroring, parity, and double parity (RAID levels 1, 5, and 6) plus striping capability for spans (RAID levels 10, 50, and 60).

Excellent performance

A dual-core LSI SAS2208* ROC, x8 PCI Express* Gen2 host interface, and 1GB of 800 MHz cache enhances the performance of mainstream applications.

Inside-the-box design flexibility

With a true MD2 form factor, this adapter is ideal for low-profile height and half-length adapter slots. Eight external 6-Gb/s SAS ports allow connection to 6-Gb/s or 3-Gb/s high-performance SAS drives, high-capacity SATA drives, or a combination of both. 

Outstanding availability

Delivers proactive drive monitoring and automatic error correction. A new battery (optional accessory) offers multiple operating modes, including high heat tolerance and five-year service life options.  

Support for premium feature upgrade

Includes a connector for an optional hardware-based key for the Intel® RAID SSD Cache with FastPath* I/O upgrade enabling the use of one or more SSDs as a large cache pool for the RAID controller, significantly improving the performance of many server applications.

Product Information and Resources

Product Specifications

Product order code Supported Devices RAID Level Supported Number of Internal Ports Number of External Ports Number of Devices Supported Compatible Products



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SAS/SATA 0, 1, 5, 6, 10, 50, 60 0 8 128 Click for detailed lists of Intel products