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400-AEFW — 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 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→ SFF BAY→ 400-AEFW
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
LATCH 1.2TB SAS — 400-AEFW SAS CONN WITH TRAY — HOT-PLUG READY Tray: See server gen 1.2TB SAS — 400-AEFW BARE DRIVE — NO LATCH Needs caddy/tray to install 2.5" (70 x 100mm) SFF 2.5" DRIVE | 1.2TB | SAS — Always ask: "Does it come with tray/caddy?" | Tray PN varies by server generation TITLE SFF 2.5" DRIVE PN 400-AEFW CAP 1.2TB SAS
KEY FEATURES
•
SFF Form Factor
•
1.2TB 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
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 400-AEFW?
400-AEFW is a DELL 400-AEFW internal hard drive 1.2 TB 10000 RPM 2.5" SAS manufactured by DELL. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace 400-AEFW?
There are 12 known substitutes for 400-AEFW: 342-5519, 342-5523, 34XWC and 9 more. Substitute compatibility should be verified for your specific system.
Is 400-AEFW still available?
400-AEFW is currently Unknown.
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Last verified: September 2026