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726897-B21 ✓ Verified by PartsTable
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

The HP 726897-B21 HP P840/4GB SAS Controller Manufacturer: HP ItemCondition: REF Model: Alternative Part Numbers: 726897-B21,761874-B21,761880-001 is a HPE industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-650-5591, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
726897-B21
NSN: 5998-01-650-5591
FSC: 5998 — CIRCUIT CARD ASSEMBLY
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number726897-B21
ManufacturerHPE
Capacity4GB
NSN5998-01-650-5591
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 726897-B21 MFR HPE HP 726897-B21 HP P840/4GB SAS Controller
KEY FEATURES
•
4GB Capacity
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESDDR3-1866MHZ, 72-BIT WIDE BUS AT 14.9 GB/S; SUPPORTS UP TO 16 PHYSICAL DRIVES WITHOUT EXPANDER GB
END ITEM IDENTIFICATIONPROLIANT GEN 9 RACK AND TOWER SERVER
OVERALL HEIGHT0.6 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSMART ARRAY P840 CONTROLLER
OVERALL LENGTH6.6 INCHES NOMINAL IN
OVERALL WIDTH4.4 INCHES NOMINAL IN
SPECIAL FEATURESDDR3-1866MHZ, 72-BIT WIDE BUS AT 14.9 GB/S; SUPPORTS UP TO 16 PHYSICAL DRIVES WITHOUT EXPANDER GB
END ITEM IDENTIFICATIONPROLIANT GEN 9 RACK AND TOWER SERVER
OVERALL HEIGHT0.6 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSMART ARRAY P840 CONTROLLER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
761880-001Compatible
HP Smart Array P840/4Gb FBWC 12G 2-Port Int PCI-E 3.0x8 SAS Controller
compatible
761874-B21Compatible
HP Smart Array P840/4Gb FBWC 12G 2-Port Int PCI-E 3.0x8 SAS Controller FIO
compatible
784486-001Compatible
HP Smart Array P840/4Gb FBWC 12G 2-Port Int PCI-E 3.0x8 SAS Controller
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
761874-B21SUBSTITUTE
HP Smart Array P840/4Gb FBWC 12G 2-Port Int PCI-E 3.0x8 SAS Controller
HPE
761880-001SUBSTITUTE
HP Smart Array P840/4Gb FBWC 12G 2-Port Int PCI-E 3.0x8 SAS Controller
HPE
784486-001SUBSTITUTE
HP Smart Array P840/4Gb FBWC 12G 2-Port Int PCI-E 3.0x8 SAS Controller
HPE
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FREQUENTLY ASKED QUESTIONS
What is 726897-B21?
726897-B21 is a HP 726897-B21 HP P840/4GB SAS Controller Manufacturer: HP ItemCondition: REF Model: Alternative Part Numbers: 726897-B21,761874-B21,761880-001 manufactured by HPE.
What parts can replace 726897-B21?
There are 3 known substitutes for 726897-B21: 761880-001, 761874-B21, 784486-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 726897-B21?
726897-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5998-01-650-5591. This indicates validated use in U.S. government and defense supply chains.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026