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Technical Data Sheet
PartsTable / STORAGE_HDD / 785071-B21
785071-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 300GB 12GB SAS 10K 2.5IN SC HDD

HP 300GB 12GB SAS 10K 2.5IN SC HDD. 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→ 785071-B21
SPECIFICATIONS
Part Number785071-B21
ManufacturerHP
Capacity300GB
Speed10K RPM
COMPONENT DIAGRAM
LABEL 300GB 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 300GB | 7200 / 10K / 15K RPM FORM FACTOR — 2.5" Hot-swap, carrier-specific MOUNTING — 4x M3 bottom Standard SFF screw pattern TITLE HDD DRIVE PN 785071-B21 MFR HP HP 300GB 12GB SAS 10k 2.5in Sc HDD
KEY FEATURES
•
300GB Capacity
•
10K RPM Speed
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
785412-001Compatible
HP 300GB SAS 12G 10k 512n SFF St HDD
compatible
872475-B21Compatible
HP 300Gb SAS 12G 10K 512n Digitally Signed SFF SC HDD
compatible
872735-001Compatible
HP 300Gb SAS 12G 10K 512n Digitally Signed SFF SC HDD
compatible
781514-003Compatible
HP 300Gb SAS 12G 10K 512n Digitally Signed SFF HDD - Bare Drive
compatible
872283-001Compatible
HP 300Gb SAS 12G 10K 512n Digitally Signed SFF HDD - Bare Drive
compatible
872286-001Compatible
HP 300Gb SAS 12G 10K 512n Digitally Signed SFF HDD - Bare Drive
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 1
785412-001SUBSTITUTE
HP 300Gb SAS 12G 10K 512n SFF ST HDD
HPE
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FREQUENTLY ASKED QUESTIONS
What is 785071-B21?
785071-B21 is a HP 300GB 12GB SAS 10k 2.5in Sc HDD manufactured by HP. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace 785071-B21?
There are 12 known substitutes for 785071-B21: 785412-001, 872475-B21, 872735-001 and 9 more. Substitute compatibility should be verified for your specific system.
Is 785071-B21 still available?
785071-B21 is currently Unknown.
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Last verified: July 2026