PartsTable
Technical Data Sheet
PY278AA ✓ Verified by PartsTable
HPE · STORAGE_HDD · 3.5_SATA_HDD
WHAT YOU NEED TO KNOW
SAS backplane supports SATA, not vice versa NL-SAS = SAS protocol at nearline (7.2K) speed — NOT SATA
Gen8 LFF tray ≠ Gen10 tray — different screw holes
PRODUCT OVERVIEW

This high-performance, high-capacity internal hard drive is the ideal solution for handling your ongoing storage demands. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-581-1948, 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
STORAGE_HDD 3.5_SATA_HDD PY278AA
NSN: 7025-01-581-1948
FSC: 7025
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part NumberPY278AA
ManufacturerHPE
Capacity250GB
NSN7025-01-581-1948
COMPONENT DIAGRAM
RELEASE LATCH 250GB NL-SAS 7.2K PY278AA HPE NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 250GB | NL-SAS 7.2K NL-SAS uses SAS protocol at 7.2K RPM | SAS backplane supports SATA, not reverse Tray generation matters | Gen8 LFF tray differs from Gen10 TITLE LFF 3.5" DRIVE PN PY278AA MFR HPE
KEY FEATURES
250GB Capacity
DATA STORAGE CAPACITY: 250.00 GIGABYTES
DESIGN TYPE: HARD DISK
DRIVE QUANTITY: 1
TRANSFER RATE IN MEGABYTES PER SECOND: 300.0
UNIT DESIGN: INTERNAL
TYPICAL APPLICATIONS
  • Enterprise storage arrays and SANs
  • Direct-attached storage (DAS) expansion
  • Database tier storage (OLTP, OLAP)
  • Virtual machine datastore expansion
  • Backup-to-disk and disaster recovery targets
  • Content delivery and media streaming storage
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYHP SATA HARD DISK DRIVE
DATA STORAGE CAPACITY250.00 GIGABYTES
SPECIAL FEATURESSILENT OPERATION; ROHS COMPLIANT
DESIGN TYPEHARD DISK
DRIVE QUANTITY1
END ITEM IDENTIFICATIONP.C.
TRANSFER RATE IN MEGABYTES PER SECOND300.0
UNIT DESIGNINTERNAL
PART NAME ASSIGNED BY CONTROLLING AGENCYHP SATA HARD DISK DRIVE
DATA STORAGE CAPACITY250.00 GIGABYTES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
381652-001Compatible
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
compatible
381652-002Compatible
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
compatible
381654-001Compatible
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
compatible
381654-002Compatible
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
compatible
390597-001Compatible
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
compatible
391937-001Compatible
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 20
EA788AASUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
381652-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
381652-002SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
381654-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
381654-002SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
390597-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
391937-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
410411-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
410502-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
431657-002SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
431657-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
432394-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
438767-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
440747-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
444885-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
449980-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
451947-001SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
451947-002SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
451947-003SUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
EA788ASUBSTITUTE
HP 250Gb SATA 3G 7.2K LFF HDD for Desktops/WS
HP
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FREQUENTLY ASKED QUESTIONS
What is PY278AA?
PY278AA is a 250GB SATA 3.0Gbps SMART IV HDD ALL manufactured by HPE. It is classified as a STORAGE_HDD (3.5_SATA_HDD).
What parts can replace PY278AA?
There are 12 known substitutes for PY278AA: 381652-001, 381652-002, 381654-001 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PY278AA?
PY278AA is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-581-1948. This indicates validated use in U.S. government and defense supply chains.
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