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877766-B21 — Storage Datasheet

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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 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers. 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→ 877766-B21
SPECIFICATIONS
Part Number877766-B21
ManufacturerHPE
Form FactorLFF
Capacity3.84TB
COMPONENT DIAGRAM
RELEASE LATCH 3.84TB NL-SAS 7.2K 877766-B21 HPE NL-SAS INTERFACE INTERPOSER SAS drive in SATA tray? Check board compatibility 3.5" (101.6 x 146mm) LFF 3.5" DRIVE | 3.84TB | NL-SAS 7.2K 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 877766-B21 MFR HPE
KEY FEATURES
•
LFF Form Factor
•
3.84TB Capacity
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
876432-B21Compatible
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
compatible
875355-001Compatible
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
compatible
878856-001Compatible
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
compatible
P18571-B21Compatible
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers
compatible
P18573-B21Compatible
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers
compatible
P18633-001Compatible
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 7
875355-001SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
HPE
876432-B21SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
HPE
878856-001SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
HPE
P18571-B21SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
HPE
P18573-B21SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
HPE
P18633-001SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
HPE
P18634-001SUBSTITUTE
HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD
HPE
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FREQUENTLY ASKED QUESTIONS
What is 877766-B21?
877766-B21 is a HP 3.84Tb SATA 6G Read Intensive Digitally Signed LFF SCC SSD for DX Servers manufactured by HPE.
What parts can replace 877766-B21?
There are 12 known substitutes for 877766-B21: 876432-B21, 875355-001, 878856-001 and 9 more. Substitute compatibility should be verified for your specific system.
Is 877766-B21 still available?
877766-B21 is currently Unknown.
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PartsTable Design LLC · partstable.com
Last verified: September 2026