| 57DHN Dell RAID Battery Back
Up 7.2V 5mA for PowerEdge 2500, 2500SC, 2550, 4600 Servers The
battery back up enables Write-Back Mode, which means if there is a
system\power failure the battery allows the RAID Controller to keep
the discs spinning for a few extra seconds and write out the I/O
Cache.
Compatible with Dell PowerEdge 2500, 2500SC, 2550, 4600
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