IBM 32 MB (28L1003) Cache Memory

This is a 32MB Battery-Backup Cache for Netfinity ServeRAID-3H or ServeRAID II. ??This Battery-Backup Cache protects data in write-back cache from being lost in the event of a power outage in the server or a problem that occurs to the adapter itself. Once the adapter is replaced the cache option can be reinstalled allowing the data to be restored to the server. In addition, this option contains high-speed cache memory to optimize RAID performance.