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Technical Data Sheet
PartsTable / STORAGE_HDD / 400ATJF
400ATJF ✓ Verified by PartsTable
DELL · 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

Increase the storage capacity of your system with the 1 TB Hard Drive from Dell. Offering a rotational speed of 7200 RPM, this drive provides fast disk access. Featuring SAS interface, this hard drive delivers enhanced data transfer speeds.

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→ 400ATJF
SPECIFICATIONS
TypeHDD
HDD size2.5"
HDD speed7200 RPM
InterfaceSAS
HDD capacity1 TB
Component forServer/workstation
Operating voltage5 V
HDD interface transfer rate12 Gbit/s
Storage drive adapter includedYes
COMPONENT DIAGRAM
LABEL P/N S/N HDD SAS 12Gb/s 69.85 mm (2.75") 100.0 mm 2.5" HDD — MECHANICAL Spinning disk, hot-swap SAS 12Gb/s — Dual-port 7200 / 10K / 15K RPM FORM FACTOR — 2.5" Hot-swap, carrier-specific MOUNTING — 4x M3 bottom Standard SFF screw pattern TITLE HDD DRIVE PN 400ATJF MFR DELL 400-ATJF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
400-ATJECompatible
Dell 1Tb SAS 12G 7.2K SFF 512n HDD in LFF R/T-Series Tray - DPN - Gen 14
compatible
400-ASKFCompatible
Dell 1Tb SAS 12G 7.2K SFF 512n HDD in LFF R/T-Series Tray - SPN - Gen 14
compatible
C86D4Compatible
Dell 1Tb SAS 12G 7.2K SFF 512n HDD in LFF R/T-Series Tray - MPN - Gen 14
compatible
NDGNFCompatible
Dell 1Tb SAS 12G 7.2K SFF 512n HDD in LFF R/T-Series Tray - MPN - Gen 14
compatible
400-ALUNCompatible
Dell 1Tb SAS 12G 7.2K SFF 512n HDD R/T-Series Tray - SPN - Gen 13
compatible
400-ALUQCompatible
Dell 1Tb SAS 12G 7.2K SFF 512n HDD R/T-Series Tray - DPN - Gen 13
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 4
C86D4SUBSTITUTE
Dell 1Tb SAS 12G 7.2K SFF 512n HDD in LFF R/T-Series Tray - DPN - Gen 14
DELL
NDGNFSUBSTITUTE
Dell 1Tb SAS 12G 7.2K SFF 512n HDD in LFF R/T-Series Tray - DPN - Gen 14
DELL
400-ASKFSUBSTITUTE
Dell 1Tb SAS 12G 7.2K SFF 512n HDD in LFF R/T-Series Tray - DPN - Gen 14
DELL
400-ATJESUBSTITUTE
Dell 1Tb SAS 12G 7.2K SFF 512n HDD in LFF R/T-Series Tray - DPN - Gen 14
DELL
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FREQUENTLY ASKED QUESTIONS
What is 400ATJF?
400ATJF is a 400-ATJF manufactured by DELL. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace 400ATJF?
There are 12 known substitutes for 400ATJF: 400-ATJE, 400-ASKF, C86D4 and 9 more. Substitute compatibility should be verified for your specific system.
Is 400ATJF still available?
400ATJF 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