Intel® RAID Controller RS25FB044

Four internal and external port 6-Gb/s PCI Express* SAS/SATA RAID Controller for entry-level servers

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 connector for up to four internal ports
  • One external 8080 SAS/SATA connector 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, Intel® Server Chassis, and Intel® Server 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 or a SAS switch.

High performance and scalability

PCI Express* Gen 3 architecture supports over 700,000 IOPs. Employ JBODs supporting up to 244 physical devices, or RAID 0, 1, 1E/10 with up to ten 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


Supported devices


Supported operating systems

Windows*, Linux*, Nexenta*, VMWare*

Compatible battery backup options


RAID level supported

0, 1, 1E, 10, JBOD

Number of ports internal


Number of ports external


Number of devices supported


Embedded memory


PCIe* host interface

PCI Express* 3.0 x8

I/O processor model


Connector orientation Top
Extended warranty available for purchase (select countries) Yes
Additional features None
Included items (1) Intel® RAID Controller, (1) quick start user guide, (1) standard bracket and (1) low-profile bracket. No SAS cables are included.
Compatible Products Click for detailed lists of Intel products

Tested Component Lists

Tested hardware


Tested operating system list


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