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581284-B21 ✓ Verified by PartsTable
HP · STORAGE_HDD · 2.5_SAS_HDD
WHAT YOU NEED TO KNOW
SAS HDD backplane accepts SATA drives, SATA backplane does NOT accept SAS 2.5" SAS HDDs come with or without carrier/tray — ALWAYS ASK
ALWAYS confirm carrier/tray PN — server-specific trays vary by generation
PRODUCT OVERVIEW
HP 450GB 10K DP 6G 2.5IN SAS HDD

HP SAS Enterprise and Midline hard drives deliver high performance solutions for hosting high transaction based applications. Available in HP hot plug carriers or non-hot plug. HP SAS Enterprise and Midline hard drives come in both 2.5-inch (SFF) and 3.5-inch (LFF) industry standard form factors and are available in a variety of capacity points to meet a wide range of requirements.

The SAS interface was designed and engineered for high availability, enterprise-class data storage where performance, reliability and data integrity are crucial. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-615-7662, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
STORAGE_HDD→ 2.5_SAS_HDD→ 581284-B21
NSN: 7025-01-615-7662
FSC: 7025
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number581284-B21
ManufacturerHP
Capacity450GB
Speed10K RPM
NSN7025-01-615-7662
COMPONENT DIAGRAM
LABEL 450GB HDD SAS 12Gb/s 69.85 mm (2.75") 100.0 mm 2.5" HDD — MECHANICAL Spinning disk, hot-swap SAS 12Gb/s — Dual-port 450GB | 7200 / 10K / 15K RPM FORM FACTOR — 2.5" Hot-swap, carrier-specific MOUNTING — 4x M3 bottom Standard SFF screw pattern TITLE HDD DRIVE PN 581284-B21 MFR HP HP 450GB 10k DP 6G 2.5in SAS HDD
KEY FEATURES
•
450GB Capacity
•
10K RPM Speed
•
DATA STORAGE CAPACITY: 450.0 GIGABYTES
•
DESIGN TYPE: HARD DISK
•
TRANSFER RATE IN MEGABYTES PER SECOND: 600.0
•
DRIVE QUANTITY: 1
•
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)
OVERALL HEIGHT4.630 INCHES NOMINAL IN
DATA STORAGE CAPACITY450.0 GIGABYTES
DESIGN TYPEHARD DISK
OVERALL LENGTH9.000 INCHES NOMINAL IN
SPECIAL FEATURESHOT-PLUGGABLE
TRANSFER RATE IN MEGABYTES PER SECOND600.0
DRIVE QUANTITY1
UNIT DESIGNINTERNAL
OVERALL WIDTH7.000 INCHES NOMINAL IN
END ITEM IDENTIFICATIONALH-210226-001(318U8), DL380G6 W/450GB H GB
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
EG0450FBLSFCompatible
HP 450Gb SAS 6G 10K SFF HDD - Bare Drive
compatible
693569-006Compatible
HP 450Gb SAS 6G 10K SFF HDD - Bare Drive
compatible
AM316ACompatible
HP 450Gb SAS 6G 10K SFF ST HDD for RX2800 i2/i4
compatible
EG0450FCVBHCompatible
HP 450Gb SAS 6G 10K SFF HDD - Bare Drive
compatible
EG0450FBDBTCompatible
HP 450Gb SAS 6G 10K SFF HDD - Bare Drive
compatible
EG0450FBDSQCompatible
HP 450Gb SAS 6G 10K SFF HDD - Bare Drive
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 20
AM316ASUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
AW612ASUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
E2D56ASUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
EG0450FCSPKSUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
EG0450FBDBTSUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
EG0450FBDSQSUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
EG0450FBLSFSUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
EG0450FBVFMSUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
EG0450FCHHTSUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
EG0450FCVBHSUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
507129-011SUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
507129-012SUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
581310-001SUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
597609-002SUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
599476-002SUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
613921-001SUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
619286-002SUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
635336-001SUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
641552-002SUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
652566-002SUBSTITUTE
HP 450Gb SAS 6G 10K SFF ST HDD
HPE
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FREQUENTLY ASKED QUESTIONS
What is 581284-B21?
581284-B21 is a HP 450GB 10k DP 6G 2.5in SAS HDD manufactured by HP. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace 581284-B21?
There are 12 known substitutes for 581284-B21: EG0450FBLSF, 693569-006, AM316A and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 581284-B21?
581284-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-615-7662. 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