Microsemi AFM-700 2GB Battery Backed Write Cache - 2 GB for RAID Controller
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Server Accessories
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General Information

Enabling the onboard cache on a RAID adapter card signi cantly enhances performance - especially in RAID 5 and RAID 6 scenarios - by accommodating both read caching and write caching of data. But data stored in the cache for write caching can be lost if the cache is not protected against a power or system failure.

Lithium-ion (Li-ion) battery backup units (BBUs) are traditionally employed to protect cached data on RAID adapters. Once installed, a new BBU will take several hours to reach a full charge. During the charge cycle, write cache is unprotected (i.e. turned o ), which adversly a ects the RAID adapter's performance. A typical BBU requires routine capacity testing and performs sub-optimally during those test periods. Lastly, a fully-charged BBU can only preserve data for a maximum of 72 hours during a power loss before the battery power depletes.

Technical Information
Memory Size:2 GB
Device Supported:RAID Controller

Physical Characteristics
Weight (Approximate):13.76 oz


Adaptec RAID Adapters:

  • 72405
  • 71685
  • 71605
  • 7805
  • 71605Q
  • 7805Q
Environmentally Friendly:Yes
Environmental Certification:RoHS

Limited Warranty:3 Year

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Shipping Restrictions
  • This item cannot be shipped to PO Boxes.
  • This item can be shipped only within the U.S.

  • UPC: 760884156827 
  • Mfr's Part #: 2275400-R 

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