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Technical Data Sheet
PartsTable / STORAGE_HDD / 41N5691
41N5691 ✓ Verified by PartsTable
Lenovo · 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 ThinkPad 120 GB 5400 rpm Serial ATA Hard Drive option makes it easy to upgrade the primary hard drive of supported ThinkPad notebooks. This new ThinkPad hard drive balances the requirements of capacity, performance, size, and reliability to meet the exacting standards of ThinkPad customers. For additional storage and backup capability, use the optional ThinkPad Serial ATA Hard Drive Bay Adapter (40Y8725) to install the ThinkPad 120 GB Serial ATA Hard Drive in the: - Media bay in supported ThinkPad notebooks such as the ThinkPad T60 Series notebooks - ThinkPad Advanced Dock media bay - ThinkPad X6 UltraBase - ThinkPad X6 Tablet UltraBase.

WHERE IT FITS
STORAGE_HDD→ 2.5_SAS_HDD→ 41N5691
SPECIFICATIONS
Depth100 mm
Width70 mm
Height9.5 mm
Weight102 g
HDD size2.5"
InternalYes
HDD speed5400 RPM
InterfaceSerial ATA
HDD capacity120 GB
Average latency5.5 ms
Average seek time11 ms
Operating voltage5 V
COMPONENT DIAGRAM
LABEL 120GB 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 120GB | 7200 / 10K / 15K RPM FORM FACTOR — 2.5" Hot-swap, carrier-specific MOUNTING — 4x M3 bottom Standard SFF screw pattern TITLE HDD DRIVE PN 41N5691 MFR Lenovo 120GB Serial ATA 5400rpm hard drive
KEY FEATURES
•
120GB 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 41N5691?
41N5691 is a 120GB Serial ATA 5400rpm hard drive manufactured by Lenovo. It is classified as a STORAGE_HDD (2.5_SAS_HDD).
Is 41N5691 still available?
41N5691 is currently Unknown.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026