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861691-X21 — Storage Datasheet

HPE · 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

HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD. 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→ 861691-X21
SPECIFICATIONS
Part Number861691-X21
ManufacturerHPE
Form FactorLFF
Capacity1TB
Speed7.2K RPM
BROWSE HPE MACHINES
ProLiant DL360 Gen10 ProLiant DL380 Gen10 ProLiant BL460c Gen10 ProLiant DL380 Gen9 ProLiant DL360 Gen9 3PAR StoreServ 8450 ProLiant BL685c G7 3PAR StoreServ 8400 3PAR StoreServ 8440 3PAR StoreServ 8200 MSA 2052 SAN Storage ProLiant BL460c Gen9
All HPE machines and parts
COMPONENT DIAGRAM
RELEASE LATCH 1TB NL-SAS 7.2K RPM 861691-X21 HPE NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 1TB | 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 861691-X21 MFR HPE
KEY FEATURES
•
LFF Form Factor
•
1TB 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
SUBSTITUTES & CROSS-REFERENCES 12
861691-B21CompatiblePARTNER
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
compatible
862128-001CompatiblePARTNER
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
compatible
861691-H21CompatiblePARTNER
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
compatible
861691-K21CompatiblePARTNER
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
compatible
861695-002CompatiblePARTNER
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF HDD - Bare Drive
compatible
866122-001CompatiblePARTNER
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF HDD - Bare Drive
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 20
GB1000EAMYCSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
GE262AASUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB001000GWCBCSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB001000GWFGFSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB001000GWFWKSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB001000GWJANSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000CBEPRSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000CBZQESUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000EAMZESUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000EBNCFSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000EBZQBSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000ECWCQSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000GCEEKSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000GCEHHSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000GCWCVSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000GDUNUSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000GVYZESUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
MB1000HBLMBSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
397377-010SUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
GB1000EAFJLSUBSTITUTE
HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD
HPE
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FREQUENTLY ASKED QUESTIONS
What is 861691-X21?
861691-X21 is a HP 1Tb SATA 6G 7.2K 512n Digitally Signed MDL LFF SC HDD manufactured by HPE.
What parts can replace 861691-X21?
There are 12 known substitutes for 861691-X21: 861691-B21, 862128-001, 861691-H21 and 9 more. Substitute compatibility should be verified for your specific system.
Is 861691-X21 still available?
861691-X21 is currently Unknown.
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PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.