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400-AJPW — Storage Datasheet

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Dell · DRIVE SFF
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 300 GB Hard Drive from Dell. Offering a rotational speed of 10,000 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
SFF BAY→ 400-AJPW
SPECIFICATIONS
Part Number400-AJPW
ManufacturerDell
Form FactorSFF
Capacity300GB
COMPONENT DIAGRAM
LATCH 300GB SAS — 400-AJPW SAS CONN WITH TRAY — HOT-PLUG READY Tray: See server gen 300GB SAS — 400-AJPW BARE DRIVE — NO LATCH Needs caddy/tray to install 2.5" (70 x 100mm) SFF 2.5" DRIVE | 300GB | SAS — Always ask: "Does it come with tray/caddy?" | Tray PN varies by server generation TITLE SFF 2.5" DRIVE PN 400-AJPW CAP 300GB SAS
KEY FEATURES
•
SFF Form Factor
•
300GB 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-AJOUCompatible
Dell 300Gb SAS 12G 10K SFF HDD in LFF R/T-Series Tray - DPN - Gen 13
compatible
400-AJOYCompatible
Dell 300Gb SAS 12G 10K SFF HDD in LFF R/T-Series Tray - SPN
compatible
400-AJOZCompatible
Dell 300Gb SAS 12G 10K SFF HDD in LFF R/T-Series Tray - SPN
compatible
9C26MCompatible
Dell 300Gb SAS 12G 10K SFF HDD in LFF R/T-Series Tray - MPN
compatible
J3MPFCompatible
Dell 300Gb SAS 12G 10K SFF HDD in LFF R/T-Series Tray - MPN - Gen 13
compatible
29MMMCompatible
Dell 300Gb SAS 12G 10K SFF HDD R/T-Series Tray - MPN - Gen 13
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 5
9C26MSUBSTITUTE
Dell 300Gb SAS 12G 10K SFF HDD in LFF R/T-Series Tray - DPN
DELL
J3MPFSUBSTITUTE
Dell 300Gb SAS 12G 10K SFF HDD in LFF R/T-Series Tray - DPN
DELL
400-AJOUSUBSTITUTE
Dell 300Gb SAS 12G 10K SFF HDD in LFF R/T-Series Tray - DPN
DELL
400-AJOYSUBSTITUTE
Dell 300Gb SAS 12G 10K SFF HDD in LFF R/T-Series Tray - DPN
DELL
400-AJOZSUBSTITUTE
Dell 300Gb SAS 12G 10K SFF HDD in LFF R/T-Series Tray - DPN
DELL
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FREQUENTLY ASKED QUESTIONS
What is 400-AJPW?
400-AJPW is a DELL 400-AJPW internal hard drive 300 GB 10000 RPM 2.5" SAS manufactured by Dell.
What parts can replace 400-AJPW?
There are 12 known substitutes for 400-AJPW: 400-AJOU, 400-AJOY, 400-AJOZ and 9 more. Substitute compatibility should be verified for your specific system.
Is 400-AJPW still available?
400-AJPW is currently Unknown.
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Last verified: September 2026