The Areca RAID Controller operates using cache memory. The Battery
Backup Unit is an add-on module that provides power to the RAID
Controller's cache memory in the event of a power failure. The Battery
Backup Unit monitors the write back cache on the RAID Controller and
provides power to the cache memory if it contains data not yet written to
the hard drives when a power failure occurs.
Accessories - Battery Backup
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Copyright 2005 Tekram Systems Co., Ltd. All Rights Reserved
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Both Units are compatible with Areca ARC-11xx and ARC-12xx Series