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55RMX ✓ 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
DELL 500GB 7.2K 2.5IN SFF SAS HDD

Increase the storage capacity of your system with this 500GB Hard Drive from Dell™. This feature-rich drive, boasts a storage capacity of up to 500GB, enabling users to store large amounts of data. It also offers a rotational speed of up to 7,200 RPM.

This product has been tested and validated on Dell systems. It is supported by Dell Technical Support when used with a Dell system. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
STORAGE_HDD→ 2.5_SAS_HDD→ SFF BAY→ 55RMX
SPECIFICATIONS
HDD size2.5"
InternalYes
HDD speed7200 RPM
HDD capacity500 GB
Product colourGrey
Operating voltage5 V
COMPONENT DIAGRAM
LABEL 500GB HDD SAS 12Gb/s 69.85 mm (2.75") 100.0 mm SFF HDD — MECHANICAL Spinning disk, hot-swap SAS 12Gb/s — Dual-port 500GB | 7200 / 10K / 15K RPM FORM FACTOR — SFF Hot-swap, carrier-specific MOUNTING — 4x M3 bottom Standard SFF screw pattern TITLE HDD DRIVE PN 55RMX MFR DELL Dell 500GB 7.2k 2.5in SFF SAS HDD
KEY FEATURES
•
SFF Form Factor
•
500GB Capacity
•
7.2K 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
341-9873Compatible
Dell 500Gb SAS 6G 7.2K SFF DP HDD R/T-Series Tray - DPN
compatible
341-9878Compatible
Dell 500Gb SAS 6G 7.2K SFF DP HDD R/T-Series Tray - SPN
compatible
342-0428Compatible
Dell 500Gb SAS 6G 7.2K SFF DP HDD R/T-Series Tray - DPN
compatible
342-2092Compatible
Dell 500Gb SAS 6G 7.2K SFF DP HDD Bare Drive - DPN
compatible
342-2093Compatible
Dell 500Gb SAS 6G 7.2K SFF DP HDD Bare Drive - DPN
compatible
342-3574Compatible
Dell 500Gb SAS 6G 7.2K SFF DP HDD R/T-Series Tray - DPN
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 20
D7MYFSUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
GFR3DSUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
K831NSUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
M959YSUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
R734KSUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
RPY24SUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
TTYVHSUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
X7KF7SUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
341-9873SUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
341-9878SUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
342-0428SUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
342-2092SUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
342-2093SUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
342-3574SUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
342-4815SUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
342-5742SUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
400-19735SUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
400-ACWZSUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
400-ACYISUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
400-ADZCSUBSTITUTE
Dell 500Gb SAS 6G 7.2K SFF DP HDD - APN
DELL
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FREQUENTLY ASKED QUESTIONS
What is 55RMX?
55RMX is a Dell 500GB 7.2k 2.5in SFF SAS HDD manufactured by DELL. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
What parts can replace 55RMX?
There are 12 known substitutes for 55RMX: 341-9873, 341-9878, 342-0428 and 9 more. Substitute compatibility should be verified for your specific system.
Is 55RMX still available?
55RMX is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026