The Intel RAID Maintenance Free Backup Unit (AXXRMFBU5) is a critical data protection accessory designed to safeguard dynamic cache memory on Intel RS3 Integrated RAID modules during unexpected power failures. This maintenance-free unit combines the reliability of a supercapacitor module with the durability of NAND flash memory to provide short-term power, enabling cached data to be written safely to non-volatile storage, thus preventing data loss or corruption.

Key features include:

• Maintenance-free operation using a supercapacitor and NAND flash without any replaceable batteries.


• Protects dynamic cache memory by supplying power during power loss events to flush volatile data to safe storage.


• Compatible specifically with Intel Integrated RAID Modules RMS3CC080 and RMS3CC040 from the RS3 controller family.


• Packaged with the supercapacitor module, flash memory module, mounting bracket, and necessary installation cables.

For more detailed guidance, please refer to the [Intel Product Page](https://ark.intel.com/content/www/us/en/ark/products/82157/intel-raid-maintenance-free-backup-axxrmfbu5.html).