Seagate ST3000DM003 3TB HDD
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Seagate ST3000DM003 3TB Hard Drive SATA-6GBPS 5.9K RPM 64MB Refurbished

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Part Number#: ST3000DM003
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Short Description:
ST3000DM003 3 Terabytes (TB) 5.9K Revolutions Per Minute (RPM) Serial Advanced Technology Attachment (SATA)-6 Gigabytes Per Second (GBPS) 64MB Buffer 3.5 Inch Bytes Per Sector 4096 Internal Desktop 8 Heads 4 Disks Hard Disk Drive | Made by Seagate |Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Overview of the Seagate ST3000DM003 3TB Hard Drive

In the world of data storage, hard disk drives (HDDs) are a common choice for preserving and accessing digital information. One such HDD is the ST3000DM003, a 3-terabyte (TB) device with specific features that make it suitable for various desktop applications. This description will delve into the details of the ST3000DM003 HDD, breaking down its specifications and technical aspects. From its capacity to revolutions per minute, interface, buffer size, and internal structure, we'll explore every aspect to help you understand this storage solution better.

The Basics Discussion of Capacity and Form Factor

The ST3000DM003 is a 3-terabyte Hard Disk Drive, which means it can store a whopping 3,000 gigabytes (GB) of data. This impressive capacity makes it an ideal choice for users who need to store vast amounts of information, such as high-definition videos, large photo libraries, or extensive software applications. When it comes to form factor, the ST3000DM003 is designed as a 3.5-inch drive.

3 Terabytes (TB) Capacity

The capacity of an HDD is one of the most crucial factors to consider when choosing a storage solution. In this case, the ST3000DM003 offers a generous 3TB of storage space, making it suitable for a wide range of applications, from personal use to professional data storage needs.

3.5-Inch Form Factor

The 3.5-inch form factor is the standard size for desktop hard drives. This size allows for larger storage capacities and generally offers better performance compared to smaller 2.5-inch drives. The 3.5-inch form factor of the ST3000DM003 makes it compatible with most desktop computers and enclosures.

Speed and Performance: 5.9K RPM

Rotational speed, often measured in revolutions per minute (RPM), is a key determinant of an HDD's performance. In the case of the ST3000DM003, it operates at 5,900 RPM, a respectable speed for a desktop HDD.

5.9K Revolutions Per Minute (RPM)

The 5,900 RPM speed indicates how quickly the drive's platters spin, allowing the read/write heads to access data on the disk. Higher RPMs generally result in faster data access times, which is essential for tasks like loading large files or running applications. While not as fast as some high-end HDDs, the 5.9K RPM of the ST3000DM003 provides a good balance between performance and capacity, making it suitable for various computing needs.

Data Transfer: SATA-6Gbps Interface

The interface of a hard drive plays a critical role in determining how quickly data can be transferred to and from the drive. The ST3000DM003 features a Serial Advanced Technology Attachment (SATA) interface with a speed of 6 gigabytes per second (Gbps), often referred to as SATA-6Gbps.

Serial Advanced Technology Attachment (SATA)

SATA is a widely used interface technology for connecting storage devices, including HDDs, to a computer's motherboard. It has evolved over the years, and the SATA-6Gbps version is one of the fastest iterations available, providing excellent data transfer speeds.

6 Gigabytes Per Second (Gbps)

The 6Gbps speed means that the ST3000DM003 can transfer data at a rate of 6 gigabytes per second. This fast data transfer rate is essential for tasks like backing up large files, installing software, or transferring multimedia content. Users can enjoy efficient data handling with this high-speed SATA interface.

Cache Size: 64MB Buffer

A buffer, often referred to as a cache, is a small amount of high-speed volatile memory that serves as a temporary storage location for frequently accessed data. The ST3000DM003 is equipped with a 64MB buffer, enhancing its overall performance.

64MB Buffer

The 64MB buffer size of the ST3000DM003 acts as a temporary storage space for frequently used data, reducing the need to access the slower main storage of the drive. This results in faster data retrieval and improved overall performance when accessing frequently used files or running applications.

Sector Size: 4096 Bytes Per Sector

The sector size of an HDD determines how data is organized on the disk. The ST3000DM003 has a sector size of 4096 bytes per sector, which is also known as the advanced format.

4096 Bytes Per Sector (Advanced Format)

Advanced Format, with a 4096-byte sector size, is a modern approach to organizing data on hard drives. This format is more efficient and helps reduce wasted space, enhancing storage capacity and data reliability. It's essential to note that most modern operating systems and software are fully compatible with this sector size.

Internal Structure of 3TB SATA-6GBPS HDD

Understanding the internal structure of an HDD provides insights into its design and how it manages data storage. The ST3000DM003 features 8 heads and 4 disks in its configuration.

8 Heads

The heads in an HDD are responsible for reading and writing data to the disk platters. In the case of the ST3000DM003, it has 8 heads, which allows for efficient data access across the multiple platters within the drive.

4 Disks

Hard disk drives store data on circular platters, and the number of platters, also known as disks, can impact the drive's capacity and performance. The ST3000DM003 consists of 4 disks, which work in conjunction with the 8 heads to store and retrieve data efficiently.

Key Features and Benefits

The ST3000DM003 hard disk drive offers several notable features and benefits, making it a preferred choice for many users and businesses. Some of these key advantages include:

  • Large Storage Capacity: With a storage capacity of 3TB, the drive provides ample space for storing various types of data, including documents, multimedia files, and applications.
  • High-Speed Data Transfer: The SATA-6 GBPS interface enables rapid data transfer between the hard disk drive and the computer, reducing latency and enhancing overall system responsiveness.
  • Efficient Data Processing: The 64MB buffer ensures smooth data caching and processing, allowing for efficient data management and retrieval.
  • Enhanced Reliability: The drive's 3.5-inch form factor, along with its robust internal configuration, contributes to its reliability and long-term performance, making it suitable for desktop use.
  • Compatibility: The ST3000DM003 hard disk drive is compatible with various operating systems and can be seamlessly integrated into different desktop configurations, catering to a wide range of user requirements.
Use Cases and Applications

The ST3000DM003 hard disk drive is suitable for a multitude of use cases and applications across different industries and sectors. Some common applications include:

  • Personal Computing: Ideal for personal computers, the ST3000DM003 drive accommodates various personal data storage needs, including multimedia files, documents, and software applications.
  • Small Business and Home Offices: Well-suited for small businesses and home offices, the drive provides reliable and high-capacity storage solutions for data backup, archiving, and general computing tasks.
  • Media and Entertainment: The drive's large storage capacity is beneficial for media and entertainment purposes, facilitating the storage and management of large multimedia files, such as high-definition videos, music libraries, and graphics-intensive applications.
  • Data Centers and Server Environments: In data centers and server environments, the ST3000DM003 drive can be utilized for bulk data storage, hosting, and data processing applications, catering to the demanding requirements of enterprise-level computing.

General Information for Seagate ST3000DM003 3TB Hard Drive

  • Manufacturer: Seagate
  • Model Number SKU# ST3000DM003
  • Device Type: Hard Disk Drive
  • Interface Type: SATA-6GBPS

Technical Information of Internal Desktop Hard Disk Drive

  • Interface: SATA-6GBPS
  • Storage Capacity: 3 TB
  • Number Of Heads: 8
  • Number Of Disks: 4
  • Bytes Per Sector: 4096
  • Drive Dimensions: 3.5 Inch


  • Rotational Speed: 5900 RPM
  • Buffer Size: 64 MB
  • Maximum Internal Data Transfer Rate: 1813 MBPS
  • Average Data Rate (Read/Write): 146 MBPS
  • Maximum Sustained Data Rate (Read): 180 MBPS
  • Maximum I/O Data-Transfer Rate: 600 MBPS
  • Average Latency: 5.10 MS

In summary, the ST3000DM003 is a 3TB, 5.9K RPM, SATA-6Gbps HDD with a 64MB buffer, 3.5-inch form factor, 4096 bytes per sector, 8 heads, and 4 disks. This combination of features makes it a versatile storage solution suitable for a wide range of desktop applications. Whether you need to store large multimedia files, run software applications, or back up important data, the ST3000DM003 offers a good balance between capacity and performance.

Understanding the technical specifications of this HDD can help you make an informed decision when choosing the right storage solution for your needs. The ST3000DM003 is a reliable and efficient option for users who require ample storage space without sacrificing too much in terms of speed and performance.

Product Condition:
Warranty provided by ALLHDD.COM:
90 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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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

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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