LSI BAT1S1P / LSIiBBU08 Battery Backup Unit for LSI 9260, 9261, 9280, 9750, IBM M5015, M5014, etc.

Note: Remote cable is optional for $15. If your controller is 9260-16i, 9280-16i4e, 9280-24i4e, 9750-16i4e, or 9750-24i4e, the remote cable is required.

LSI Battery Backup Unit BBU

LSI battery backup units are add-on modules that protect against data loss in the event of a server or power failure by providing emergency power to the cache memory.  When power is restored, the data not yet written to the hard drives can be retrieved from cache memory.