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400AEFW ✓ 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 Dell™ system with this 1.2 TB Hard Drive from Dell. It boasts a storage capacity of 1.2 TB, enabling users to store large amounts of data. This hard drive features a Serial Attached SCSI and it offers a maximum rotational speed of 10,000 RPM.

This product has been tested and validated on Dell systems and is compatible with select Dell Systems. It is supported by Dell Technical Support when used with a Dell system.

WHERE IT FITS
STORAGE_HDD→ 2.5_SAS_HDD→ 400AEFW
SPECIFICATIONS
TypeHDD
HDD size2.5"
HDD speed10000 RPM
InterfaceSAS
HDD capacity1.2 TB
Component forServer/workstation
Operating voltage5 V
Quantity per pack1 pc(s)
HDD interface transfer rate6 Gbit/s
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 400AEFW MFR DELL 400-AEFW
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
342-5519Compatible
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN
compatible
342-5523Compatible
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
compatible
34XWCCompatible
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - MPN
compatible
400-26654Compatible
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
compatible
400-AAIUCompatible
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN
compatible
400-AEFVCompatible
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - SPN - Gen 13
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 10
JHCH0SUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
DELL
342-5518SUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
DELL
342-5519SUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
DELL
342-5523SUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
DELL
34XWCSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
DELL
400-26654SUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
DELL
400-AAIUSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
DELL
400-AEFVSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
DELL
400-AEXXSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
DELL
400-AFTKSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP HDD in LFF R/T-Series Tray - DPN
DELL
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FREQUENTLY ASKED QUESTIONS
What is 400AEFW?
400AEFW is a 400-AEFW manufactured by DELL. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace 400AEFW?
There are 12 known substitutes for 400AEFW: 342-5519, 342-5523, 34XWC and 9 more. Substitute compatibility should be verified for your specific system.
Is 400AEFW still available?
400AEFW is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026