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826550-001 ✓ Verified by PartsTable
HP · DRIVE LFF
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

The HP 4TB SAS 12G 7.2k LFF St HDD is a HP hard disk drive designed for enterprise environments demanding consistent performance and data integrity. Key specifications include Generation: 12th Gen. The unit ships in a LFF 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
LFF BAY→ 826550-001
SPECIFICATIONS
Generation12th Gen
COMPONENT DIAGRAM
RELEASE LATCH 4TB NL-SAS 7.2K RPM 826550-001 HP NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 4TB | NL-SAS 7.2K 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 826550-001 MFR HP
KEY FEATURES
•
LFF Form Factor
•
4TB 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
826074-B21Compatible
HP 4TB SAS 12G 7.2k 512n Mdl LFF St HDD
compatible
872487-B21Compatible
HP 4Tb SAS 12G 7.2K 512n Digitally Signed MDL LFF SC HDD
compatible
872745-001Compatible
HP 4Tb SAS 12G 7.2K 512n Digitally Signed MDL LFF SC HDD
compatible
818369-007Compatible
HP 4Tb SAS 12G 7.2K 512n Digitally Signed MDL LFF HDD - Bare Drive
compatible
818369-008Compatible
HP 4Tb SAS 12G 7.2K 512n Digitally Signed MDL LFF HDD - Bare Drive
compatible
820409-002Compatible
HP 4Tb SAS 12G 7.2K 512n Digitally Signed MDL LFF HDD - Bare Drive
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 1
826074-B21SUBSTITUTE
HP 4Tb SAS 12G 7.2K 512n MDL LFF ST HDD
HPE
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FREQUENTLY ASKED QUESTIONS
What is 826550-001?
826550-001 is a HP 4TB SAS 12G 7.2k LFF St HDD manufactured by HP.
What parts can replace 826550-001?
There are 12 known substitutes for 826550-001: 826074-B21, 872487-B21, 872745-001 and 9 more. Substitute compatibility should be verified for your specific system.
Is 826550-001 still available?
826550-001 is currently Unknown.
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Last verified: July 2026