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M51CY — 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 300Gb SAS 6G 15K SFF DP HDD for Workstations - SPN. 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→ M51CY
SPECIFICATIONS
Part NumberM51CY
ManufacturerDELL
Form FactorSFF
Capacity300GB
Speed15K RPM
COMPONENT DIAGRAM
LATCH 300GB SAS 15K RPM M51CY SAS CONN WITH TRAY — HOT-PLUG READY Tray: See server gen 300GB SAS 15K RPM M51CY BARE DRIVE — NO LATCH Needs caddy/tray to install 2.5" (70 x 100mm) SFF 2.5" DRIVE | 300GB | SAS 15K RPM Always ask: "Does it come with tray/caddy?" | Tray PN varies by server generation TITLE SFF 2.5" DRIVE PN M51CY CAP 300GB SAS
KEY FEATURES
•
SFF Form Factor
•
300GB Capacity
•
15K RPM Speed
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
342-2240Compatible
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - SPN
compatible
342-2241Compatible
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - DPN
compatible
342-2242Compatible
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - DPN
compatible
342-3080Compatible
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - SPN
compatible
342-3521Compatible
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - DPN
compatible
342-3573Compatible
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - DPN
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 20
9VGK7SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
C8TC5SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
F05JRSUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
H8DVCSUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
M47JTSUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
NNTMCSUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
NWH7VSUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
RWC83SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
T09N6SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
300SS61525RTSUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
342-2240SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
342-2241SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
342-2242SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
342-3080SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
342-3521SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
342-3573SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
342-4275SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
342-4276SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
342-5511SUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
8C2JNSUBSTITUTE
Dell 300Gb SAS 6G 15K SFF DP HDD R/T-Series Tray - MPN - Gen 13
DELL
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FREQUENTLY ASKED QUESTIONS
What is M51CY?
M51CY is a Dell 300Gb SAS 6G 15K SFF DP HDD for Workstations - SPN manufactured by DELL.
What parts can replace M51CY?
There are 12 known substitutes for M51CY: 342-2240, 342-2241, 342-2242 and 9 more. Substitute compatibility should be verified for your specific system.
Is M51CY still available?
M51CY is currently Unknown.
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Last verified: September 2026