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39T2521 ✓ Verified by PartsTable
IBM · 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

The HDD 40GB is a IBM hard disk drive designed for enterprise environments demanding consistent performance and data integrity. Key specifications include Internal: Yes, HDD speed: 5400 RPM, HDD capacity: 40 GB, Compatible products: ThinkPad R50e, R51e & R52.. 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→ 39T2521
SPECIFICATIONS
InternalYes
HDD speed5400 RPM
HDD capacity40 GB
Compatible productsThinkPad R50e, R51e & R52.
COMPONENT DIAGRAM
LABEL 40GB 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 40GB | 7200 / 10K / 15K RPM FORM FACTOR — 2.5" Hot-swap, carrier-specific MOUNTING — 4x M3 bottom Standard SFF screw pattern TITLE HDD DRIVE PN 39T2521 MFR IBM HDD 40GB
KEY FEATURES
•
40GB 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

No verified substitutes available.

LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 39T2521?
39T2521 is a HDD 40GB manufactured by IBM. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
Is 39T2521 still available?
39T2521 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026