Seagate
Seagate Momentus ST9640320AS 640GB 2.5-Inch HDD
★★★★★
Reliable Mobile Storage Solution The SEAGATE Momentus 5400.6 hard drive offers a perfect blend of performance, capacity, and durability for laptop and external storage applications. With its high shock resistance and G-Force Protection, your data remains secure on the go. Specifications: ...
$270.00*
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✓ In Stock on Amazon.com
*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Reliable Mobile Storage Solution
The SEAGATE Momentus 5400.6 hard drive offers a perfect blend of performance, capacity, and durability for laptop and external storage applications. With its high shock resistance and G-Force Protection, your data remains secure on the go.
Specifications:
- Brand: Seagate
- Model: ST9640320AS
- Capacity: 640 GB
- Speed: 5400RPM
- Interface: SATA 3.0 Gb/s
- Cache: 8 MB
- Form Factor: 2.5-Inch
Key Features
Seagate Momentus
640GB 5400 RPM
8MB Cache 2.5"
SATA 3.0Gb/s
Internal Notebook Hard Drive
Specifications
Brand
Seagate
Model
Momentus ST9640320AS
Storage Capacity
640GB
Form Factor
2.5"
Rotational Speed
5400 RPM
Cache
8MB
Interface
SATA 3.0Gb/s
Type
Internal Notebook Hard Drive
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View on Amazon →Pros & Cons
👍 Pros
- Offers a 640GB storage capacity, providing ample space for documents, photos, and media files
- Features a 5400 RPM spin speed, which is a common and reliable speed for internal notebook hard drives
- Comes with an 8MB Cache, assisting in faster data access and improved performance for frequently used files
- Utilizes the SATA 3.0Gb/s interface, offering compatibility with a wide range of modern and older laptops
- Designed in a 2.5" form factor, making it suitable for most standard notebook computers
- Manufactured by Seagate, a well-known brand in data storage solutions, indicating reliability
👎 Cons
- The 5400 RPM spin speed is slower than 7200 RPM HDDs or SSDs, which may result in longer load and transfer times
- An 8MB Cache is relatively small compared to newer hard drives that often feature 32MB or 64MB caches
- The SATA 3.0Gb/s interface is an older standard (SATA II) and slower than SATA 6.0Gb/s (SATA III), limiting potential data transfer speeds
- Being an HDD, it is inherently slower and more susceptible to shock damage compared to Solid State Drives (SSDs)
- Specific details on noise levels or power consumption are not provided, which could be a factor for laptop users
- This is an internal component, requiring technical knowledge and tools for installation into a notebook
Frequently Asked Questions
What is the storage capacity of the Seagate Momentus ST9640320AS hard drive?
The Seagate Momentus ST9640320AS offers a storage capacity of 640GB, providing significant space for your files.
What is the rotational speed and cache size of this hard drive?
This internal notebook hard drive operates at 5400 RPM and features an 8MB cache, contributing to its performance.
What interface does the Seagate Momentus ST9640320AS use?
It uses the SATA 3.0Gb/s interface, which is compatible with many notebook computers.
What form factor is this hard drive?
The hard drive comes in a 2.5" form factor, making it suitable for integration into laptops.
Is this an internal or external hard drive?
The Seagate Momentus ST9640320AS is an internal notebook hard drive, designed to be installed inside a laptop.
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