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400AEFS ✓ 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→ 400AEFS
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 400AEFS MFR DELL 400-AEFS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
4RYFRCompatible
Dell 1.2TB SAS 6G 10k SFF DP Sed Fips 140-2 HDD - Apn
compatible
342-5883Compatible
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - SPN
compatible
342-5884Compatible
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - SPN
compatible
342-5888Compatible
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD in LFF R/T-Series Tray - SPN
compatible
400-ACIMCompatible
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD in LFF R/T-Series Tray - SPN
compatible
400-ACIXCompatible
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - SPN
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 14
8FR45SUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
VR8PGSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
342-5883SUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
342-5884SUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
342-5888SUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
400-ACIMSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
400-ACIXSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
400-ADQVSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
400-ADRDSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
400-AEFRSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
400-AEFXSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
400-AEFYSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
400-AFZVSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
4RYFRSUBSTITUTE
Dell 1.2Tb SAS 6G 10K SFF DP SED FIPS 140-2 HDD R/T-Series Tray - DPN - Gen 13
DELL
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FREQUENTLY ASKED QUESTIONS
What is 400AEFS?
400AEFS is a 400-AEFS manufactured by DELL. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace 400AEFS?
There are 12 known substitutes for 400AEFS: 4RYFR, 342-5883, 342-5884 and 9 more. Substitute compatibility should be verified for your specific system.
Is 400AEFS still available?
400AEFS is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026