Seagate ST3320418AS 320GB Hard Disk
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Seagate ST3320418AS Barracuda 320GB 7.2K RPM HDD SATA 3GBPS Refurbished

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Part Number#: ST3320418AS
List Price was: $221.21
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Short Description:
ST3320418AS Barracuda 320 Gigabyte (GB) 7.2K Revolution Per Minute (RPM) Serial Advanced Technology Attachment (SATA) Gigabit Per Second (3GBPS) 16 Megabytes(MB) Buffer 3.5-inch Hard Disk Drive | Made by Seagate | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
30 Days

More Information for the Seagate ST3320418AS 320GB 7.2K RPM HDD

In the world of computer storage, hard disk drives (HDDs) have been a staple for many years. They offer reliable and cost-effective storage solutions for a wide range of applications. The Seagate ST3320418AS Barracuda 320GB 7.2K RPM HDD is one such example. In this comprehensive review, we will take a closer look at this particular HDD, exploring its key features, specifications, and performance to help you make an informed decision when it comes to storage solutions for your computer.

Key Features

The Seagate ST3320418AS Barracuda 320GB HDD boasts several key features that make it a notable choice for many users. Let's delve into each of these features to understand them better.

  • 320GB Storage Capacity: The primary selling point of this HDD is its substantial storage capacity. With 320 gigabytes of storage space, it can comfortably store a large amount of data, including documents, photos, videos, and more.
  • 7.2K RPM: The 7,200 revolutions per minute (RPM) spindle speed is an important factor in determining the speed and performance of a hard drive. Higher RPMs generally result in faster data access and transfer speeds.
  • SATA 3GBPS Interface: The ST3320418AS Barracuda uses a Serial Advanced Technology Attachment (SATA) interface with a data transfer rate of 3 gigabits per second (3Gbps). This interface is a standard for connecting storage devices to motherboards, ensuring compatibility with most modern computers.
  • 16MB Buffer: The 16MB buffer is a cache that temporarily stores data, making it readily accessible for faster data retrieval. A larger cache can lead to improved overall performance.


To gain a better understanding of the Seagate ST3320418AS Barracuda 320GB HDD, it's essential to delve into its detailed specifications:

  • Storage Capacity: As mentioned earlier, this HDD offers a storage capacity of 320GB. This is ample space for various data types, including documents, media files, and applications.
  • Rotational Speed (RPM): The drive operates at 7,200 RPM, which is considered a standard rotational speed for desktop HDDs. This speed ensures that data is accessed and transferred relatively quickly.
  • Interface: The Barracuda HDD features a SATA 3Gbps interface, which is widely compatible with modern computer systems and offers decent data transfer rates.
  • Buffer Size: With a 16MB buffer size, this HDD provides a reasonable amount of cache for improving data access and read/write performance.
  • Form Factor: The Seagate ST3320418AS Barracuda HDD is designed with a 3.5-inch form factor, which is typical for desktop drives.
  • Seek Time: The average seek time for this HDD is around 8.5 milliseconds, indicating a decent response time for data access.
  • Reliability: Seagate is a well-established brand in the HDD market, known for producing reliable and durable drives.
  • Power Consumption: The HDD consumes approximately 8.4 watts during read/write operations and 7.7 watts when idle. This is relatively energy-efficient for a desktop HDD.


The performance of a hard drive is a crucial factor to consider when evaluating its suitability for your specific needs. Let's take a closer look at how the Seagate ST3320418AS Barracuda 320GB HDD performs in various aspects:

  • Data Transfer Speed: The 7,200 RPM rotational speed and the SATA 3Gbps interface play a significant role in determining the data transfer speed of this HDD. While it may not be the fastest drive on the market, it offers a reasonable data transfer rate for most everyday computing tasks.
  • Sequential Read/Write Speed: The sequential read and write speeds for this HDD are generally competitive with similar drives in its class. You can expect smooth performance when copying and transferring large files.
  • Random Read/Write Performance: The HDD's 16MB buffer contributes to respectable random read/write performance, making it suitable for multitasking and running applications that require quick data access.
  • Noise and Vibration: The Barracuda HDD operates relatively quietly and generates minimal vibrations, making it a good choice for a desktop environment where noise and vibrations can be disruptive.
  • Reliability and Longevity: Seagate has a reputation for producing reliable HDDs. The Barracuda series is known for its durability and longevity, which are important factors for those looking for a long-term storage solution.

Use Cases

The Seagate ST3320418AS Barracuda 320GB HDD is versatile and can be used in various scenarios. Here are some common use cases where this HDD can be beneficial:

  • Home Storage: If you need a storage solution for your personal computer at home, this HDD provides ample space for storing documents, photos, videos, and other files.
  • Media Server: The Barracuda HDD can serve as storage for a media server, allowing you to store and stream your multimedia content within your home network.
  • Desktop Computing: For everyday desktop computing, this HDD offers decent performance and reliability, making it suitable for general use.
  • Backup Solution: You can use this drive as a backup solution for important data, creating redundancy and protecting your files from accidental loss.
  • Gaming: While not the fastest drive for gaming, it can still be used for storing games and game-related files, particularly for those on a budget.
Pros and Cons

To provide a more balanced view of the Seagate ST3320418AS Barracuda 320GB HDD, let's explore its pros and cons:


  • Ample Storage: With 320GB of storage capacity, this HDD provides sufficient space for a variety of data types.
  • Reliability: Seagate is a trusted brand with a reputation for producing reliable HDDs.
  • Decent Performance: The 7,200 RPM rotational speed and 3Gbps SATA interface deliver respectable performance for general computing tasks.
  • Quiet Operation: The HDD operates quietly and generates minimal vibrations, making it suitable for a desktop environment.
  • Energy-Efficient: With a power consumption of around 8.4 watts during read/write operations, it is relatively energy-efficient.


  • Limited Capacity: While 320GB is suitable for many users, it may not be enough for those with extensive storage needs, such as professionals working with large media files.
  • Not the Fastest: The Barracuda HDD is not the fastest drive on the market, and users seeking high-speed data transfer may need to explore alternatives.
  • Limited Warranty: The standard warranty for this HDD may be considered relatively short by some users, and they might prefer a longer warranty period.
  • Noisy at Times: While generally quiet, the HDD may produce some noise during heavy read/write operations.

General Information about this Seagate ST3320418AS

  • Manufacturer: Seagate
  • Part Number or SKU# ST3320418AS
  • Product Type: SATA 3GBPS
  • Product Name: Hard Disk Drive

Technical Specifications

  • Storage Capacity: 320GB
  • Form Factor: 3.5 Inches
  • Interface Type: Serial ATA-300
  • Buffer Size: 16 MB
  • SKU: ST3320418AS

Performance - Seagate Barracuda 320GB

  • Drive Transfer Rate: 300 MBPS External
  • Internal Data Rate: 125 MBPS
  • Average Latency: 4.17 MS
  • Spindle Speed: 7200 RPM

Expansion / Connectivity

  • Interfaces: 1 x Serial ATA-300 - 7 pin Serial ATA
  • Compatible Bays: 1 x internal - 3.5 Inches

In summary, the Seagate ST3320418AS Barracuda 320GB 7.2K RPM HDD with SATA 3GBPS interface and a 16MB buffer is a reliable and cost-effective storage solution for various use cases. Its ample storage capacity, decent performance, and energy efficiency make it a suitable choice for home users, desktop computing, media storage, and backup solutions.

While it may not be the fastest HDD on the market, it offers a balance of capacity and performance that should meet the needs of many users. The quiet operation and low power consumption further enhance its appeal for desktop environments.

However, it's important to consider your specific storage requirements and performance expectations when choosing a hard drive. If you have extensive storage needs or require higher data transfer speeds, you may want to explore other HDD options or consider solid-state drives (SSDs) for improved performance.

The Seagate ST3320418AS Barracuda 320GB HDD is a dependable and budget-friendly choice for those seeking reliable storage for their everyday computing needs.

Product Condition:
Warranty provided by ALLHDD.COM:
30 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

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What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
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