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Silver 2.5 inch SATA laptop hard drive bare unit

Seagate

Seagate Momentus 7200.3 ST9160411AS 160GB 7200 RPM 16MB Cache SATA 2.5" laptop hard drive

SKU CH-MPCA-3X9XP MPN ST9160411AS

A 2.5 inch SATA laptop drive with 160GB capacity, 7200 RPM speed and 16MB cache

  • Total capacity160 GB
  • Interface typeSATA 3.0Gb/s
  • Form factor2.5 in (6.35 cm)
  • Packaging typeBare Drive
  • Cache memory16 MB
  • Mean latency4.17 ms
  • 7200 RPM spindle speed accelerates data access for responsive notebook performance
  • 16 MB cache buffers frequent read and write operations to reduce latency
  • SATA 3.0 Gb/s interface provides straightforward compatibility with standard laptop drive bays
  • 5 inch 9.5 mm form factor fits most internal notebook chassis without adapters
  • 17 ms average latency supports quick file retrieval during everyday workloads

160 GB 2.5″ laptop drive

The Seagate Momentus 7200.3 ST9160411AS is a 160 GB SATA hard drive built for 2.5″ notebook bays. It suits owners who need a direct replacement for an older laptop or a low-cost secondary drive in a compatible enclosure. Buyers who want more storage or solid-state speed will need a different product.

Thermals and power

The 7200 RPM spindle and 16 MB cache operate within standard 2.5″ SATA power limits. Average latency is 4.17 ms. The bare drive has no integrated fan and relies on the host system airflow. Acoustic output is typical for a mechanical notebook drive of this class.

Build integration

The drive uses a SATA 3.0 Gb/s interface and fits the 9.5 mm height limit common in most laptops. No extra cables or brackets are included with the bare drive. It frees up the primary bay for an operating-system SSD while adding bulk capacity for files and backups.

How it compares

Measured against everything we stock in 2.5-Inch Internal Laptop HDDs, at today’s prices. Recalculated every night.

Price $51.99
Cheaper than about 65% of the 645 comparable items (median $66.99).
Total capacity 160 GB
Lower than about 70% of the 419 comparable items (median 320 GB).
Price per TB $324.94 per TB
Pricier than about 63% of the 416 comparable items (median $233.48 per TB).

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Specifications

Product
Brand nameSeagate
Product lineMomentus 7200.3
Model nameST9160411AS
Total capacity160 GB
Performance
Mean latency4.17 ms
Rotational speed7,200 RPM
Storage
Cache memory16 MB
Ports & slots
Interface typeSATA 3.0Gb/s
Size & build
Form factor2.5 in (6.35 cm)
Max height9.5 mm
Shipping weight0.09 kg
Package size140 × 108 × 13 mm

Questions about this item

How do I install this 2.5" SATA drive in a laptop, and what step do people often miss?

Slide the drive into the 9.5mm bay, connect the SATA data and power cables, then secure it with the caddy screws; the step most people forget is checking BIOS to confirm the 160GB capacity is detected before closing the case.

What maintenance or replacement will this ST9160411AS need over time?

No routine maintenance is required; the mechanical 7200 RPM platters and 16MB cache will eventually wear, so plan to replace the drive once SMART reallocated-sector counts rise or performance drops noticeably.

What limit appears first when this Momentus 7200.3 runs sustained workloads?

The 3.0Gb/s SATA interface caps maximum throughput, so sustained transfers will hit that ceiling before the 7200 RPM platters or 16MB cache become the bottleneck.

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