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Technical Data Sheet
PartsTable / STORAGE_HDD / P28505-B21
P28505-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 2TB SAS 12G BUSINESS CRITICAL 7.2K SFF BC 512E HDD

HP 2TB SAS 12G BUSINESS CRITICAL 7.2K SFF BC 512E HDD. Key specifications include Generation: 12th Gen. The unit ships in a SFF form factor suitable for standard rack-mount installations.

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→ SFF BAY→ P28505-B21
SPECIFICATIONS
Generation12th Gen
COMPONENT DIAGRAM
LABEL 2TB HDD SAS 12Gb/s 69.85 mm (2.75") 100.0 mm SFF HDD — MECHANICAL Spinning disk, hot-swap SAS 12Gb/s — Dual-port 2TB | 7200 / 10K / 15K RPM FORM FACTOR — SFF Hot-swap, carrier-specific MOUNTING — 4x M3 bottom Standard SFF screw pattern TITLE HDD DRIVE PN P28505-B21 MFR HP HP 2TB SAS 12G Business Critical 7.2k SF
KEY FEATURES
•
SFF Form Factor
•
2TB Capacity
•
7.2K 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
P30575-001Compatible
HP 2Tb SAS 12G 7.2K 512e Digitally Signed MDL SFF BC Business Critical HDD
compatible
P28505-H21Compatible
HP 2Tb SAS 12G 7.2K 512e Digitally Signed MDL SFF BC Business Critical HDD
compatible
P28505-K21Compatible
HP 2Tb SAS 12G 7.2K 512e Digitally Signed MDL SFF BC Business Critical HDD
compatible
P28505-X21Compatible
HP 2Tb SAS 12G 7.2K 512e Digitally Signed MDL SFF BC Business Critical HDD
compatible
P28509-001Compatible
HP 2Tb SAS 12G 7.2K 512e Digitally Signed MDL SFF BC Business Critical HDD
compatible
765452-002Compatible
HP 2Tb SAS 12G 7.2K 512e Digitally Signed MDL SFF HDD - Bare Drive
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 5
P28505-H21SUBSTITUTE
HP 2Tb SAS 12G 7.2K 512e Digitally Signed MDL SFF BC Business Critical HDD
HPE
P28505-K21SUBSTITUTE
HP 2Tb SAS 12G 7.2K 512e Digitally Signed MDL SFF BC Business Critical HDD
HPE
P28505-X21SUBSTITUTE
HP 2Tb SAS 12G 7.2K 512e Digitally Signed MDL SFF BC Business Critical HDD
HPE
P28509-001SUBSTITUTE
HP 2Tb SAS 12G 7.2K 512e Digitally Signed MDL SFF BC Business Critical HDD
HPE
P30575-001SUBSTITUTE
HP 2Tb SAS 12G 7.2K 512e Digitally Signed MDL SFF BC Business Critical HDD
HPE
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FREQUENTLY ASKED QUESTIONS
What is P28505-B21?
P28505-B21 is a HP 2TB SAS 12G Business Critical 7.2k SFF Bc 512e HDD manufactured by HP. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace P28505-B21?
There are 12 known substitutes for P28505-B21: P30575-001, P28505-H21, P28505-K21 and 9 more. Substitute compatibility should be verified for your specific system.
Is P28505-B21 still available?
P28505-B21 is currently Unknown.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026