The Broadcom CacheVault Kit CVPM05 is a cache protection module for compatible Broadcom MegaRAID controllers. It protects data in the controller cache that has not yet been written to the drives in the event of a power outage or server failure.

The CacheVault module uses a supercapacitor as a power source. In the event of a host power supply failure, it provides short-term power so that cached data can be saved to the non-volatile NAND flash memory of the compatible MegaRAID controller. Once power is restored, this data can be processed again.

The kit is connected to the RAID controller via a cable and includes a 24-inch remote extender. It is designed, among others, for Broadcom MegaRAID controllers in the 94xx and 95xx series, as well as for the MegaRAID SAS 9365-28i. Exact controller compatibility must be checked before purchase based on the manufacturer's approval for the respective RAID controller model.