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Intel® RAID Controller RS25FB044

Intel® RAID Controller RS25FB044

Key Features

  • LSI SAS2308* IOC controller providing SAS 2.0 compliance including 6 Gb/s data transfer
  • One internal 8087 SAS/SATA connectors for up to four internal ports
  • One external 8080 SAS/SATA connectors for up to four external ports
  • x8 PCI Express* Generation 3 interface for fast communication with the server board
  • Heartbeat LED—blinks green indicating card activity ready

Low-cost SAS-2 with Mirroring, Striping, and JBOD for Highly Scalable Solutions

The Intel® RAID Controller RS25FB044 uses the embedded LSI 2308* ASIC CPU to perform RAID 0, 1, and 1E/10 operations and an ultra-thin driver provides low RAID overhead, for high-host CPU offload with excellent read/write performance.

All Intel® RAID products are validated across multiple platforms with Intel® Server Boards, Chassis, and Systems. Customized training, as well as service and support, make Intel the one source for customers seeking data protection, increased productivity, and simplified IT.

Target Applications

The Intel® RAID Controller RS25FB044 is ideal for servers that include both direct attached storage (DAS) and external JBOD (Just a Bunch of Disks) storage.

Key Advantages  

Internal and external connectivity

Four internal ports allow for a mirrored RAID array within a system. Four external ports allow for connecting to a JBOD (Just a Bunch of Disks) or a SAS switch.


High performance and scalability

PCI Express* Gen 3 architecture supports over 700K IOPs. Employ JBODs supporting up to 244 physical devices, or RAID 0, 1, 1E/10 with up to 10 devices.


Cost-effective data protection

Provides a low-cost RAID 0, 1, and 1E solution for entry-level server and workstation environments where high-performance and reliable data protection is required.


SAS or SATA storage

Connect SAS or SATA devices within the array. Use SAS drives for speed, reliability and scalability and use high-capacity SATA drives for budget-friendly storage.


Intel® RAID Controller RS25FB044 Information and Resources

Product Specifications

Product Order Code



Board form factor

Low profile, MD2 compliant

Data transfer rate

6 Gb/s

Supported devices

SAS/SATA devices

Supported operating systems

Microsoft Windows*, Linux* (SuSE , Red Hat), Solaris*, VMware, FreeBSD

Compatible battery backup options


RAID level supported

0, 1, 1E, 10, JBOD

# of ports internal


# of ports external


# of devices supported


Embedded memory


PCIe* host interface

x8 PCIe Gen 3

I/O processor model


Compatible Products Lists

Compatible server/workstation board

Intel® Server Board S5520UR


Intel® Server Board S5520HC


Intel® Server Board S5500WB


Intel® Server Board S5500HCV


Intel® Server Board S3420GPLC


Intel® Server Board S5500WB12V


Intel® Server Board S3420GPRX


Intel® Server Board S3420GPLX


Intel® Server Board S5520HCT


Intel® Server Board S2600GZ


Intel® Server Board S2600CO4


Intel® Server Board S2600GL


Intel® Server Board S2600CP2


Intel® Server Board S2600COEIOC


Intel® Server Board S2600CP2IOC


Intel® Server Board S2600CP4IOC


Intel® Server Board S2600COE


Intel® Server Board S2600CP2J


Intel® Server Board S3420GPV


Intel® Server Board S2600CP4


Intel® Server Board S5520URT

Compatible system

Intel® Server System R1304GZ4GC


Intel® Server System R1208GZ4GC


Intel® Server System R1208GL4DS


Intel® Server System R1208GZ4GCSAS


Intel® Server System R2308GZ4GC


Intel® Server System R2308GL4GS


Intel® Server System R2312GL4GS


Intel® Server System R2208GZ4GC10G


Intel® Server System R2224GZ4GCSAS


Intel® Server System R2312GZ4GCSAS


Intel® Server System P4308CP4MHGC


Intel® Server System P4208CP4MHGC


Intel® Server System P4304SC2SFEN


Intel® Server System H2312WPKR


Intel® Server System H2216WPJR


Intel® Server System H2216WPQKR


Intel® Server System R2216GZ4GCLX


Intel® Server System R2208GZ4IS


Intel® Server System R2308SC2SHFN


Intel® Server System R2308SC2SHDR


Intel® Server System H2312WPFJR


Intel® Server System R2208GZ4GC


Intel® Server System R2216GZ4GC


Intel® Server System R2208GL4GS


Intel® Server System P4308CP4MHEN


Intel® Server System P4304SC2SHDR


Intel® Server System P4308SC2MHGC


Intel® Server System R2308BB4GC


Intel® Server System H2312WPJR


Intel® Server System H2312WPQJR


Intel® Server System H2312WPQKR


Intel® Server System H2216WPQJR


Intel® Server System H2216WPKR


Intel® Server System H2216WPFJR

Compatible spares, accessories, and services

Intel® RAID Extended Warranty

Tested Component Lists

Tested hardware


Tested operating system list