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400-ATJF — Storage Datasheet

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DELL · STORAGE_HDD · 2.5_SAS_HDD
WHAT YOU NEED TO KNOW
SAS backplane accepts SATA drives (not vice versa) Buy with tray when possible — saves cost vs separate tray
ALWAYS ASK: "Does it come with tray/caddy?"
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→ SFF BAY→ 400-ATJF
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
LATCH 1TB SAS — 400-ATJF SAS CONN WITH TRAY — HOT-PLUG READY Tray: See server gen 1TB SAS — 400-ATJF BARE DRIVE — NO LATCH Needs caddy/tray to install 2.5" (70 x 100mm) SFF 2.5" DRIVE | 1TB | SAS — Always ask: "Does it come with tray/caddy?" | Tray PN varies by server generation TITLE SFF 2.5" DRIVE PN 400-ATJF CAP 1TB SAS
KEY FEATURES
•
SFF Form Factor
•
1TB 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
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 400-ATJF?
400-ATJF is a DELL 400-ATJF internal hard drive 1 TB 7200 RPM 2.5" SAS manufactured by DELL. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace 400-ATJF?
There are 12 known substitutes for 400-ATJF: 400-ATJE, 400-ASKF, C86D4 and 9 more. Substitute compatibility should be verified for your specific system.
Is 400-ATJF still available?
400-ATJF is currently Unknown.
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Last verified: September 2026