Seagate ST3400633AS 400GB Hard Drive
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ST3400633AS Seagate Barracuda 400GB 7.2K RPM SATA 16MB Refurbished

Availability: In Stock
Part Number#: ST3400633AS
List Price was: $660.61
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Short Description:
ST3400633AS Barracuda 400 Gigabyte(GB) 7200 Revolutions Per Minute(RPM)Serial Advanced Technology Attachment (SATA) 16 Megabytes(MB) Buffer 3.5 Inch Large Form Factor (LFF) Low Profile (1.0 Inch) Hard Disk Drive | Made by Seagate | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Overview of HDD

A hard disk drive (HDD) is a data storage device that uses magnetic storage to store and retrieve digital data using one or more rigid rapidly rotating disks. The Seagate ST3400633AS Barracuda is a type of hard disk drive that is designed for use in desktop computers, servers, and other devices that require high-capacity storage.

Capacity and Speed

The Seagate ST3400633AS Barracuda has a storage capacity of 400 gigabytes (GB), which means it can store a large amount of data. It operates at a speed of 7200 revolutions per minute (RPM), which is the standard speed for desktop hard drives. This means that it can read and write data quickly, making it ideal for tasks that require fast data access, such as gaming or video editing.

Serial Advanced Technology Attachment (SATA)

The Seagate ST3400633AS Barracuda uses the Serial Advanced Technology Attachment (SATA) interface to connect to a computer's motherboard. SATA is a type of data transfer technology that is faster and more reliable than its predecessor, the Parallel ATA (PATA) interface. The SATA interface allows for faster data transfer speeds, which is essential for modern computing applications that require high-speed data access.


The Seagate ST3400633AS Barracuda has a buffer size of 16 megabytes (MB), which is the amount of memory that is used to temporarily store data before it is written to or read from the hard drive. The larger the buffer, the faster data can be written and read from the hard drive. This makes the Seagate ST3400633AS Barracuda a great choice for applications that require large data transfers or frequently access small files.

Form Factor

The Seagate ST3400633AS Barracuda has a 3.5-inch large form factor (LFF) and a low profile (1.0 inch) design. The LFF form factor is the standard size for desktop hard drives, while the low profile design allows it to fit into smaller spaces, such as small form factor (SFF) desktop computers. This makes it a versatile choice for a wide range of computing applications.

Reliability and Durability

The Seagate ST3400633AS Barracuda is designed to be reliable and durable. It uses advanced features such as Seagate's Perpendicular Recording technology, which improves data reliability and reduces data loss. It also has a Mean Time Between Failure (MTBF) of 750,000 hours, which means it is expected to last a long time without any issues. Additionally, it has a low power consumption of 8 watts when active, which makes it energy efficient and environmentally friendly.

Finally, the Seagate ST3400633AS Barracuda is a high-quality hard disk drive that is designed to provide reliable and fast storage for desktop computers, servers, and other devices. It has a large storage capacity of 400 GB, operates at a speed of 7200 RPM, uses the SATA interface, has a 16 MB buffer size, and is designed with a 3.5-inch LFF form factor and low profile design. Its advanced features and low power consumption make it a great choice for a wide range of computing applications.

General Information about the Seagate ST3400633AS

  • Manufacturer: Seagate Technology
  • Model Number or SKU#: ST3400633AS
  • Product Line: Barracuda

Technical Information

  • Storage Capacity: 400GB
  • Rotational Speed: 7200 RPM
  • Buffer: 16MBytes
  • Data Transfer Rate: 300mbps External Maximum Serial ATA - II
  • Seek Time: 8.2 MS Average Read Typical
  • Seek Time: 9.0 MS Average Write Typical
  • Latency: 4.16 MS Average
  • Interfaces/Ports: 1 X 7-Pin Serial ATA/300 Serial ATA

Dimension and Weight

  • Width : 4 Inch
  • Depth : 5.8 Inch
  • Height : 1 Inch
  • Weight : 1.52 LBS

Contact us or ask for live chat/help if you have any questions about the compatibility of this item to ensure the model's matching features with your current system.

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.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

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Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
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UPS® First Overnight - Saturday
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FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
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Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
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  • You can estimate the shipping cost from the products detail page, also available on the checkout page
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