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For the 2020 holiday season, returnable items shipped between October 1 and December 31 can be returned until January 31, 2021. You may be charged a restocking fee up to 50% of item's price for used or damaged returns and up to 100% for materially different item.
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3 Year Data Recovery Plan

from After Solutions
  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages.
  • If your drive stops working, the Rescue data recovery plan will attempt to recover the data from the failed drive and recovered data will be returned on a media storage device or via secure cloud-based data storage.
  • Covers new single-disk bare (internal) drives of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back

2 Year Data Recovery Plan

from After Solutions
  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages.
  • If your drive stops working, the Rescue data recovery plan will attempt to recover the data from the failed drive and recovered data will be returned on a media storage device or via secure cloud-based data storage.
  • Covers new single-disk bare (internal) drives of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back

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3 Year Data Recovery Plan

from After Solutions
$14.99
  • Your Rescue Plan documents will be delivered to you via email only to the address associated with your Amazon.com account and can be found in your account message center within the Buyer/Seller Messages.
  • If your drive stops working, the Rescue data recovery plan will attempt to recover the data from the failed drive and recovered data will be returned on a media storage device or via secure cloud-based data storage.
  • Covers new single-disk bare (internal) drives of any brand when purchased within 30 days (receipt must be retained for purchases not on the same transaction).
  • Free shipping for in–lab data recovery; 24/7 online case status tracking
  • If your data isn’t recovered, you get your money back

Seagate Barracuda 7200 320 GB 7200RPM SATA 3Gb/s 16MB Cache 3.5 Inch Internal Hard Drive ST3320418AS-Bare Drive

4.3 out of 5 stars 671 ratings

List Price: $54.99
Price: $29.99
You Save: $25.00 (45%)
320 GB
Compatible Devices Home
Brand Seagate
Digital Storage Capacity 320 GB
Hardware Interface SATA 3.0 Gb/s
Type of product 3.5 Inches

About this item

    This fits your .
  • Make sure this fits by entering your model number.
  • Spindle Speed is 7,200 RPM
  • Delivers 320 GB capacity, 16 MB Cache
  • Interface option is SATA 3Gb/s NCQ
  • 12th generation of the world’s most popular desktop hard drive
  • Ships in Certified Frustration-Free Packaging

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  • Seagate Barracuda 7200 320 GB 7200RPM SATA 3Gb/s 16MB Cache 3.5 Inch Internal Hard Drive ST3320418AS-Bare Drive
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Total price: $46.98
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SEAGATE ST500DM002 Barracuda 7200.12 500GB 7200 RPM 16MB cache SATA 6.0Gb/s 3.5 internal hard drive (Bare Drive) Bare Drive
Customer Rating 4.3 out of 5 stars (671) 4.7 out of 5 stars (26385) 4.6 out of 5 stars (38535) 4.4 out of 5 stars (444) 4.4 out of 5 stars (3347) 4.3 out of 5 stars (91)
Price $29.99 $54.99 $44.99 $24.85 $36.99 $27.95
Sold By SnapDealz Amazon.com Amazon.com Worldwide Product Importer SnapDealz Endless Technology Solutions
Cache Memory Installed Size 16.0 MB 256.00 64 16.00 MB 16 16.0 MB
Digital Storage Capacity 320 GB 2 TB 1 TB 500.0 GB 500 GB 500.0 GB
Hard Disk Rotational Speed 7200.0 rpm 7200 rpm 7200 rpm 7200.0 rpm 7200 rpm 7200.0 rpm
Hard Disk Size 320.0 GB 2 TB 1 TB 500.0 GB 500 GB 500.00 GB
Hard Disk Form Factor 3.50 inches 3.50 inches 3.50 inches 3.50 inches 3.50 inches 3.50 inches
Hardware Interface SATA 3.0 Gb/s SATA 6.0 Gb/s SATA 6.0 Gb/s SATA 6.0 Gb/s SATA 6.0 Gb/s SATA 6.0 Gb/s
Item Dimensions 5.87 x 4.00 x 0.78 inches 5.79 x 4.00 x 0.79 inches 5.80 x 4.00 x 1.00 inches 0.70 x 4.00 x 6.00 inches 1.03 x 4.00 x 5.79 inches 6.00 x 8.00 x 2.00 inches
Item Weight 1.20 lbs 0.92 lbs 0.97 lbs 1.60 ounces 1.08 lbs
Size 320 GB 2TB 1TB (7200 RPM) 500 GB 500 GB 500 GB

Product description

Capacity:320 GB

Product Description

Seagate Barracuda 7200 320 GB 7200RPM SATA 3Gb/s 16MB Cache 3.5 Inch Internal Hard Drive ST3320418AS-Bare Drive

From the Manufacturer

Seagate® Barracuda® drives deliver reliable service and high performance. The Barracuda family has been developed and refined over 12 generations and embodies the highest levels of design for reliability and performance. While Barracuda LP is the low power leader, the entire family of Barracuda drives lead with environmental friendly storage. Typically 70 percent or more of the materials used in each drive are recycled as well as being RoHS compliant. With capacities from 160GB all the way to 2TB, and cache sizes up to 64MB, there is Barracuda drive to fit your needs. Whether it's mainstream PC, high-end PC, gaming PC, desktop RAID or storage for USB/FireWire/eSATA connected external, Seagate offers a Barracuda drive for every need.

Seagate® Barracuda® 3.5-Inch Internal Drive
What the experts are saying...
Barracuda LP drive
Performance and reliability for everyone
Working with huge files has never been easier. That's because the Seagate Barracuda drive is incredibly fast, and offers all the storage space you need. Best of all, Seagate reliability is built in.
The Seagate Barracuda 3.5-inch Internal Drive is perfect for replacing or expanding your desktop drive capacity in:
  • Desktop PCs and Macs
  • Workstations
  • Direct- and network-attached external storage devices
  • PC-based game systems
  • Home servers
Why Choose the Seagate Barracuda drive
  • Lowers your storage costs without sacrificing performance
  • Gives you all the storage capacity you need, from 160GB up to 1.5TB
  • Features a fast 7200-RPM drive that delivers sustained transfer rates of up to 125MB/s
  • Delivers the optimum mix of performance and energy efficiency thanks to perpendicular recording technology, a SATA 3Gb/s interface, Native Command Queuing (NCQ), and up to 32MB cache
  • Ensures whisper-quiet operation, reduced power consumption and heat generation
  • Includes Seagate�s proven, industry-leading reliability
Maximum PC “First two platter 1TB drive; wicked fast. Beats previous contender easily.”
-Maximum PC, July 2009
TechTree “Blazing fast speeds, silent, cool, energy efficient” 2009 Editors choice award.
-TechTree, April 2009
PC Authority “Strong performance and noticeably quieter than its predecessor. The Barracuda 7200.12 1TB is more than good enough for an OS drive, but also good bottomless storage for your movies and music.”
-PC Authority, September 2009
Club Overclocker “Over the period of about 4 weeks of brutal testing, I was unable to find any issues or anomalies in their performance. The Barracuda 7200.12 hard drives appear to be the real deal with solid performance at an excellent price. Club Overclocker Recommended.”
-Club Overclocker, March 2009
Good Gear Guide “The Seagate Barracuda 7200.12 ST31000528AS 1TB hard drive is speedy and offers good value. If you need 1TB of data storage in a single drive, this is worth considering.”
-Good Gear Guide, April 2009
Big Bruin “Considering price, performance, and energy efficiency, the Seagate Barracuda 7200.12 1TB hard drive earns the Bigbruin.com award of "Recommended".”
-Big Bruin, April 2009


 
 
Seagate is thinking green.

"Seagate had already begun demanding 'full materials disclosure' of its suppliers, requiring them to report all the chemicals present in their products, when Apple came knocking with its new orders in 2007."
� Peter Burrows, BusinessWeek
Think Green  
 


Seagate® Barracuda® Family Hard Drives: Desktop storage for every need
Barracuda LP Barracuda XT Barracuda Family Hard Drives


Barracuda Drive Specifications
Specifications 1.5 TB1 1 TB1 750 GB1 500 GB1 320 GB1 250 GB1 160 GB1
Model Number ST31500341AS ST31000528AS ST3750528AS ST3500418AS
ST3500410AS
ST3320418AS ST3250318AS ST3160318AS
Interface Options SATA 3Gb/s NCQ SATA 3Gb/s NCQ SATA 3Gb/s NCQ SATA 3Gb/s NCQ SATA 3Gb/s NCQ SATA 3Gb/s NCQ SATA 3Gb/s NCQ
Performance
Transfer Rate, Max Ext (MB/s) 300 300 300 300 300 300 300
Sustained Data Rate OD (MB/s) 120 125 125 125 125 125 125
Cache (MB) 32 32 32 16 16 8 8
Average Latency (ms) 4.16 4.17 4.17 4.17 4.17 4.17 4.17
Spindle Speed (RPM) 7200 7200 7200 7200 7200 7200 7200
Configuration/Organization
Bytes per Sector 512 512 512 512 512 512 512
Reliability/Data Integrity              
Contact Start-Stops 50,000 50,000 50,000 50,000 50,000 50,000 50,000
Nonrecoverable Read Errors per Bits Read 1 per 10E14 1 per 10E14 1 per 10E14 1 per 10E14 1 per 10E14 1 per 10E14 1 per 10E14
Annualized Failure Rate 0.34% 0.34% 0.34% 0.34% 0.34% 0.34% 0.34%
Limited Warranty (years) 3 3 3 3 3 3 3
Power Management
Startup Current +12V Peak (A, ±10%) 2.0 2.0 2.0 2.0 2.0 2.0 2.0
Operating, Average (W) <10.8 <9.4 <9.4 <8.0 <8.0 <8.0 <8.0
Idle, Average (W) <8.3 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0
Environmental
Temperature (�C)              
   Operating 0 to 60 0 to 60 0 to 60 0 to 60 0 to 60 0 to 60 0 to 60
   Nonoperating �40 to 70 �40 to 70 �40 to 70 �40 to 70 �40 to 70 �40 to 70 �40 to 70
Shock (Gs)              
   Operating: 2 ms 70 70 70 70 70 70 70
   Nonoperating: 1 ms 300 300 300 350 350 350 350
Acoustics (bels � sound power)              
   Idle 2.6 2.5 2.5 2.6 2.6 2.6 2.6
   Seek 2.7 2.7 2.7 2.75 2.75 2.75 2.75
Physical
Height (in/mm) 1.02/26.11 1.02/26.1 1.02/26.1 0.78/20 0.78/20 0.78/20 0.78/20
Width (in/mm) 4.00/101.6 4.00/101.6 4.00/101.6 4.00/101.6 4.00/101.6 4.00/101.6 4.00/101.6
Depth (in/mm) 5.78/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99 5.787/146.99
Width (in/mm) 1.4/0.64 1.4/0.64 1.4/0.64 1.2/0.54 1.2/0.54 1.2/0.54 1.2/0.54
1 One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes when referring to hard drive capacity.


How much will it store? Digital Music Digital Photos Digital Video DVD Quality Movies HD Video
Capacity Digital Music
(Hours)
Digital Photos
(Files)
Digital Videos
(Hours)
DVD Quality
(Movies)
HD Video
(Hours)
160 GB 2,666 51,200 160 40 40
250 GB 4,165 80,000 250 63 63
320 GB 5,331 102,400 320 80 80
500 GB 8,330 160,000 500 125 125
640 GB 10,662 204,800 640 160 160
750 GB 12,495 240,000 750 188 188
1.0 TB 16,660 320,000 1,000 250 250
1.5 TB 24,990 480,000 1,500 375 375
   
Average file size using cameras highest resolution JPEG mode
 
Based on standard 2 hour movie
Based on H.264 compression at a 6.75Mbs bitrate

 
   
  Windows 7
Users can expect a performance boost when using Seagate hard drives with Windows 7
  • Windows 7 has shown to use fewer hard drive resources for system boot and general OS operations, speeding up overall performance and leaving more storage resources for applications.
  • Cache efficiency has improved. Customers who choose Seagate drives with bigger cache options will see added benefit. Seagate testing confirms improved performance from Windows Vista to Windows 7 on like hard drives with only cache size differences.
 
   


Product information

Capacity:320 GB

Warranty & Support

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Customer reviews

4.3 out of 5 stars
4.3 out of 5
671 global ratings
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Reviewed in the United States on March 25, 2019
Capacity: 500 GBVerified Purchase
2 people found this helpful
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Reviewed in the United States on June 28, 2019
Capacity: 250 GBVerified Purchase
Reviewed in the United States on February 8, 2016
Capacity: 250 GBVerified Purchase
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Reviewed in the United States on September 22, 2015
Capacity: 250 GBVerified Purchase
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Top reviews from other countries

Henry La
5.0 out of 5 stars Good Value
Reviewed in the United Kingdom on August 24, 2009
Capacity: 750 GBVerified Purchase
3 people found this helpful
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Kev Edwards
5.0 out of 5 stars excellent hard disk
Reviewed in the United Kingdom on September 23, 2010
Capacity: 1 TBVerified Purchase
L SAYI
5.0 out of 5 stars Five Stars
Reviewed in the United Kingdom on August 1, 2014
Capacity: 750 GBVerified Purchase
Ganesh Muthuswami
1.0 out of 5 stars This first time I am disappointed with Amazon
Reviewed in India on May 1, 2018
Capacity: 250 GBVerified Purchase
2 people found this helpful
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Stephan Busch
5.0 out of 5 stars fast 10 Jahre alt und läuft immernoch
Reviewed in Germany on January 22, 2018
Capacity: 750 GBVerified Purchase