PartsTable
Technical Data Sheet
861756-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
HPE 4TB SAS 12G 7.2K LFF SC 512E DS HDD

HPE 4TB SAS 12G 7.2K LFF SC 512E DS HDD. Key specifications include Generation: 12th Gen. The unit ships in a LFF form factor suitable for standard rack-mount installations.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-677-6559, 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 2.5_SAS_HDD LFF BAY 861756-B21
NSN: 7025-01-677-6559
FSC: 7025
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Generation12th Gen
NSN7025-01-677-6559
COMPONENT DIAGRAM
LABEL 4TB HDD SAS 12Gb/s 69.85 mm (2.75") 100.0 mm LFF HDD — MECHANICAL Spinning disk, hot-swap SAS 12Gb/s — Dual-port 4TB | 7200 / 10K / 15K RPM FORM FACTOR — LFF Hot-swap, carrier-specific MOUNTING — 4x M3 bottom Standard SFF screw pattern TITLE HDD DRIVE PN 861756-B21 MFR HP HPE 4TB SAS 12G 7.2k LFF Sc 512e Ds HDD
KEY FEATURES
LFF Form Factor
4TB Capacity
7.2K RPM Speed
UNIT DESIGN: INTERNAL
DESIGN TYPE: HARD DISK
DRIVE QUANTITY: 1
DRIVE SIZE: 3.50
DATA STORAGE CAPACITY: 4.0 TERABYTES
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)
UNIT DESIGNINTERNAL
DESIGN TYPEHARD DISK
DRIVE QUANTITY1
PART NAME ASSIGNED BY CONTROLLING AGENCYHARD DRIVE
DRIVE SIZE3.50
DATA STORAGE CAPACITY4.0 TERABYTES
UNIT DESIGNINTERNAL
DESIGN TYPEHARD DISK
DRIVE QUANTITY1
PART NAME ASSIGNED BY CONTROLLING AGENCYHARD DRIVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
862141-001Compatible
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF SC HDD
compatible
846521-001Compatible
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF HDD - Bare Drive
compatible
872288-001Compatible
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF HDD - Bare Drive
compatible
872290-001Compatible
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF HDD - Bare Drive
compatible
MB004000JWFVDCompatible
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF HDD - Bare Drive
compatible
MB004000JWFVKCompatible
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF HDD - Bare Drive
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 7
MB004000JWFVDSUBSTITUTE
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF SC HDD
HPE
MB004000JWFVKSUBSTITUTE
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF SC HDD
HPE
MB4000JVYZCSUBSTITUTE
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF SC HDD
HPE
846521-001SUBSTITUTE
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF SC HDD
HPE
862141-001SUBSTITUTE
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF SC HDD
HPE
872288-001SUBSTITUTE
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF SC HDD
HPE
872290-001SUBSTITUTE
HP 4Tb SAS 12G 7.2K 512e Digitally Signed MDL LFF SC HDD
HPE
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FREQUENTLY ASKED QUESTIONS
What is 861756-B21?
861756-B21 is a HPE 4TB SAS 12G 7.2k LFF Sc 512e Ds HDD manufactured by HP. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace 861756-B21?
There are 12 known substitutes for 861756-B21: 862141-001, 846521-001, 872288-001 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 861756-B21?
861756-B21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-677-6559. This indicates validated use in U.S. government and defense supply chains.
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