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431785-B21 — HP 80Gb SATA 1.5G 5.4K SFF ST HDD

HPE · DRIVE SFF
PRODUCT OVERVIEW

431785-B21: HP 80Gb SATA 1.5G 5.4K SFF ST HDD.

HP 80Gb SATA 1.5G 5.4K SFF ST HDD. 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
SFF BAY→ 431785-B21
SPECIFICATIONS
Part Number431785-B21
ManufacturerHPE
Form FactorSFF
Capacity80GB
Speed5.4K RPM
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COMPONENT DIAGRAM
LATCH 80GB SAS 5.4K RPM 431785-B21 SAS CONN WITH TRAY — HOT-PLUG READY Tray: See server gen 80GB SAS 5.4K RPM 431785-B21 BARE DRIVE — NO LATCH Needs caddy/tray to install 2.5" (70 x 100mm) SFF 2.5" DRIVE | 80GB | SAS 5.4K RPM Always ask: "Does it come with tray/caddy?" | Tray PN varies by server generation TITLE SFF 2.5" DRIVE PN 431785-B21 CAP 80GB SAS
KEY FEATURES
•
SFF Form Factor
•
80GB Capacity
•
5.4K 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 3
431907-001CompatiblePARTNER
HP 80GB SATA 1.5g 5.4k SFF St HDD
compatible
431784-B21CompatiblePARTNER
HP 80GB SATA 1.5g 5.4k SFF St HDD
compatible
432492-001CompatiblePARTNER
HP 80GB SATA 1.5g 5.4k SFF St HDD
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 3
431784-B21SUBSTITUTE
HP 80Gb SATA 1.5G 5.4K SFF ST HDD
HPE
431907-001SUBSTITUTE
HP 80Gb SATA 1.5G 5.4K SFF ST HDD
HPE
432492-001SUBSTITUTE
HP 80Gb SATA 1.5G 5.4K SFF ST HDD
HPE
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FREQUENTLY ASKED QUESTIONS
What is 431785-B21?
431785-B21 is a HP 80Gb SATA 1.5G 5.4K SFF ST HDD manufactured by HPE.
What parts can replace 431785-B21?
There are 3 known substitutes for 431785-B21: 431907-001, 431784-B21, 432492-001. Substitute compatibility should be verified for your specific system.
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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.