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317678-B21 — Storage Datasheet

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HPE · RAID CONTROLLER
WHAT YOU NEED TO KNOW
Naming: -i=Internal | -e=External | -a=Type-a modular | -c=Mezzanine SR=SmartRAID (cache) | E=Entry (no cache, HBA-like)
Smart Storage Battery SOLD SEPARATELY — no battery = no write-back cache
PRODUCT OVERVIEW

HP Smart Array 642 64Mb Ultra320 1-Port Int/2-Port Ext PCI-X Controller. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
317678-B21
SPECIFICATIONS
Part Number317678-B21
ManufacturerHPE
Capacity64MB
COMPONENT DIAGRAM
RAID ASIC CACHE FBWC SAS 0 SAS 1 SAS 2 SAS 3 BATT EXT 0 EXT 1 PCIe x8 ~187 mm STORAGE CONTROLLER | RAID 0,1,5,6,10 | PCIe SAS/SATA | FBWC cache | Battery backup connector | TITLE RAID CTRL PN 317678-B21 MFR HPE HP Smart Array 642 64Mb Ultra320 1-Port
KEY FEATURES
•
64MB Capacity
TYPICAL APPLICATIONS
  • Hardware RAID acceleration for enterprise storage
  • Data protection and parity management
  • Cache-backed write acceleration
  • Storage tiering and SSD caching
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
291967-B21CompatiblePARTNER
HP Smart Array 642 64Mb Ultra320 1-Port Int/2-Port Ext PCI-X Controller
compatible
305415-001CompatiblePARTNER
HP Smart Array 642 64Mb Ultra320 1-Port Int/2-Port Ext PCI-X Controller
compatible
011815-001CompatiblePARTNER
HP Smart Array 642 64Mb Ultra320 1-Port Int/2-Port Ext PCI-X Controller
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
011815-001SUBSTITUTE
HP Smart Array 642 64Mb Ultra320 1-Port Int/2-Port Ext PCI-X Controller
HPE
291967-B21SUBSTITUTE
HP Smart Array 642 64Mb Ultra320 1-Port Int/2-Port Ext PCI-X Controller
HPE
305415-001SUBSTITUTE
HP Smart Array 642 64Mb Ultra320 1-Port Int/2-Port Ext PCI-X Controller
HPE
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FREQUENTLY ASKED QUESTIONS
What is 317678-B21?
317678-B21 is a HP Smart Array 642 64Mb Ultra320 1-Port Int/2-Port Ext PCI-X Controller manufactured by HPE.
What parts can replace 317678-B21?
There are 3 known substitutes for 317678-B21: 291967-B21, 305415-001, 011815-001. Substitute compatibility should be verified for your specific system.
Is 317678-B21 still available?
317678-B21 is currently Unknown.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026