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400-AJRZ — 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

DELL 400-AJRZ internal hard drive 300 GB 15000 RPM 2.5" SAS. The unit ships in a SFF form factor suitable for standard rack-mount installations. 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-AJRZ
SPECIFICATIONS
Part Number400-AJRZ
ManufacturerDell
Form FactorSFF
Capacity300GB
COMPONENT DIAGRAM
LATCH 300GB SAS — 400-AJRZ SAS CONN WITH TRAY — HOT-PLUG READY Tray: See server gen 300GB SAS — 400-AJRZ 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-AJRZ 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
18C6PCompatible
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - MPN - Gen 13
compatible
400-AJRJCompatible
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - SPN
compatible
400-AJRXCompatible
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - DPN
compatible
DNMPRCompatible
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - MPN
compatible
NCT9FCompatible
Dell 300Gb SAS 12G 15K SFF HDD - APN
compatible
M3MH7Compatible
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - MPN - Gen 13
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 7
DNMPRSUBSTITUTE
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - SPN
DELL
M3MH7SUBSTITUTE
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - SPN
DELL
THFR5SUBSTITUTE
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - SPN
DELL
18C6PSUBSTITUTE
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - SPN
DELL
400-AJRJSUBSTITUTE
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - SPN
DELL
400-AJRRSUBSTITUTE
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - SPN
DELL
400-AJRXSUBSTITUTE
Dell 300Gb SAS 12G 15K SFF HDD in LFF R/T-Series Tray - SPN
DELL
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FREQUENTLY ASKED QUESTIONS
What is 400-AJRZ?
400-AJRZ is a DELL 400-AJRZ internal hard drive 300 GB 15000 RPM 2.5" SAS manufactured by Dell.
What parts can replace 400-AJRZ?
There are 12 known substitutes for 400-AJRZ: 18C6P, 400-AJRJ, 400-AJRX and 9 more. Substitute compatibility should be verified for your specific system.
Is 400-AJRZ still available?
400-AJRZ is currently Unknown.
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Last verified: September 2026