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737394-B21 ✓ Verified by PartsTable
HP · STORAGE_HDD · 3.5_SAS_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
HP 450GB 15K 12G 3.5INCH SCC ENT 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.<br /><br /><b>Performance and Reliability for Multiple Application Environments</b><br /><br>&bull;&nbsp;High reliability for Mission Critical applications.<br> This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-677-6537, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
STORAGE_HDD→ 3.5_SAS_HDD→ 737394-B21
NSN: 7025-01-677-6537
FSC: 7025
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
RPM10,000
Cache128MB
Capacity1.8TB
InterfaceSAS 12Gbps
Form Factor2.5-inch
NSN7025-01-677-6537
COMPONENT DIAGRAM
RELEASE LATCH 450GB NL-SAS 15K RPM 737394-B21 HP NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 450GB | NL-SAS 15K RPM 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 737394-B21 MFR HP
KEY FEATURES
•
450GB Capacity
•
15K RPM Speed
•
DRIVE SIZE: 3.50
•
UNIT DESIGN: INTERNAL
•
DRIVE QUANTITY: 1
•
DATA STORAGE CAPACITY: 450.0 GIGABYTES
•
DESIGN TYPE: HARD DISK
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)
DRIVE SIZE3.50
UNIT DESIGNINTERNAL
DRIVE QUANTITY1
DATA STORAGE CAPACITY450.0 GIGABYTES
DESIGN TYPEHARD DISK
PART NAME ASSIGNED BY CONTROLLING AGENCYHOT PLUG SMART DRIVE
DRIVE SIZE3.50
UNIT DESIGNINTERNAL
DRIVE QUANTITY1
DATA STORAGE CAPACITY450.0 GIGABYTES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
737573-001Compatible
HP 450GB SAS 12G 15k 512n LFF Scc HDD
compatible
759210-B21Compatible
HP 450GB SAS 12G 15k 512n SFF Sc HDD
compatible
759547-001Compatible
HP 450GB SAS 12G 15k 512n SFF Sc HDD
compatible
744995-002Compatible
HP 450Gb SAS 12G 15K 512n SFF HDD - Bare Drive
compatible
748385-002Compatible
HP 450Gb SAS 12G 15K 512n SFF HDD - Bare Drive
compatible
759202-002Compatible
HP 450Gb SAS 12G 15K 512n SFF HDD - Bare Drive
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 8
FM803AASUBSTITUTE
HP 450Gb SAS 12G 15K 512n LFF SCC HDD
HPE
454231-001SUBSTITUTE
HP 450Gb SAS 12G 15K 512n LFF SCC HDD
HPE
484992-001SUBSTITUTE
HP 450Gb SAS 12G 15K 512n LFF SCC HDD
HPE
487675-001SUBSTITUTE
HP 450Gb SAS 12G 15K 512n LFF SCC HDD
HPE
495608-001SUBSTITUTE
HP 450Gb SAS 12G 15K 512n LFF SCC HDD
HPE
581316-001SUBSTITUTE
HP 450Gb SAS 12G 15K 512n LFF SCC HDD
HPE
581316-002SUBSTITUTE
HP 450Gb SAS 12G 15K 512n LFF SCC HDD
HPE
737573-001SUBSTITUTE
HP 450Gb SAS 12G 15K 512n LFF SCC HDD
HPE
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FREQUENTLY ASKED QUESTIONS
What is 737394-B21?
737394-B21 is a HP 450GB 15k 12G 3.5inch Scc Ent SAS HDD manufactured by HP. It is classified as a STORAGE_HDD (3.5_SAS_HDD).
What parts can replace 737394-B21?
There are 10 known substitutes for 737394-B21: 737573-001, 759210-B21, 759547-001 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 737394-B21?
737394-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-677-6537. 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