RAID cache modules — check if the battery is included and verify cache size. Ship unlocked and with test reports. Firmware must match the server. Key checks: Ship with test reports. Ship UNLOCKED.
Firmware must match server
PRODUCT OVERVIEW
The HP 273914-B21 is a Battery-Backed Write Cache pack, designed for HPE Smart Array controllers in ProLiant Gen8 and Gen9 servers. It provides backup power to the BBWC module during unexpected power loss, ensuring cached write data is safely committed to flash memory. This is a high-volume replacement part in TPM market as ProLiant Gen8 and Gen9 servers remain widely deployed.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-543-2853, indicating validated use in U.S. government and defense logistics supply chains.
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FREQUENTLY ASKED QUESTIONS
What is 273914-B21?
273914-B21 is a HPE SmartArray 6404 RAID controller PCI Express x8 manufactured by HPE. It is classified as a CONTROLLER (RAID_CACHE).
What parts can replace 273914-B21?
There are 3 known substitutes for 273914-B21: SMART ARRAY 6404/256, A9891A, AB363A. Substitute compatibility should be verified for your specific system.
What is the NSN for 273914-B21?
273914-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-543-2853. This indicates validated use in U.S. government and defense supply chains.
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