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Seagate Barracuda 250 GB 7200 RPM SATA 3Gb/s 8MB Cache 3.5 Inch Internal Hard Drive ST3250318AS-Bare Drive

4.1 out of 5 stars 975 customer reviews
| 31 answered questions

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250 GB
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  • Capacity: 250 GB; Rotational Speed: 7200 rpm
  • Cache: 8 MB; Interface: SATA 3Gb/s; Max. External Transfer Rate: 300 MB/s
  • Average Seek Time - Average latency: 4.16ms, Read: <8.5ms, Write: <9.5ms
  • Shock - Operating: 70G @ 2ms; Non-operating: 350G @ 2ms
10 new from $28.00 14 used from $3.99 4 refurbished from $6.45

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  • Seagate Barracuda 250 GB 7200 RPM SATA 3Gb/s 8MB Cache 3.5 Inch Internal Hard Drive ST3250318AS-Bare Drive
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  • Antec VP-450 Power Supply
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  • Crucial Ballistix Sport 4GB Single DDR3 1600 MT/s (PC3-12800) CL9 @1.5V UDIMM 240-Pin Memory Module BLS4G3D1609DS1S00
Total price: $87.98
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Technical Details

Capacity: 250 GB
  • Brand Name: Seagate
  • Model Number: ST3250318AS
  • Manufacturer Warranty Description: Five Year Limited Warranty
  • Hard Disk Description: desktop
  • Form Factor: desktop
See more technical details

Compare to Similar Items

This item Seagate Barracuda 250 GB 7200 RPM SATA 3Gb/s 8MB Cache 3.5 Inch Internal Hard Drive ST3250318AS-Bare Drive
Customer Rating 4 out of 5 stars (975) 4 out of 5 stars (2169) 4 out of 5 stars (7489) 4 out of 5 stars (44)
Price $28.00 $49.98 $55.08 $28.83
Shipping FREE Shipping FREE Shipping FREE Shipping $3.99
Sold By JusTrade Amazon.com PCH MICRO AMTECH
Cache Memory Installed Size 8 MB 64 64 16
Hard Disk Rotational Speed 7,200 rpm 7,200 rpm 7,200 rpm 7,200 rpm
Hard-Drive Size Information not provided 1 TB 1,000 GB 250 GB
Hard Disk Form Factor 3.5 in 3.5 in 3.5 in 3.5 in
Hardware Connectivity SATA 3.0 Gb/s SATA 6.0 Gb/s SATA 6.0 Gb/s Serial interface
Item Dimensions 4 x 6 x 1 in 5.79 x 4 x 0.79 in 4 x 5.8 x 1 in 4 x 5.8 x 0.8 in
Item Weight 1 lb 1.32 lbs 0.97 lb 0.88 lb
Size 250 GB 1TB 1 TB 250GB
Add to Cart Add to Cart Add to Cart Add to Cart

Product Description

Capacity: 250 GB

Product Description

Seagate ST3250318AS 250 GB SATA2 7200 rpm 8 MB Hard Drive, Bulk.

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
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
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
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
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
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
Digital Photos
Digital Videos
DVD Quality
HD Video
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:250 GB
Product Dimensions 6 x 4 x 1 inches
Item Weight 1 pounds
Shipping Weight 1.4 pounds (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item is not eligible for international shipping. Learn More
Item model number ST3250318AS
Customer Reviews
4.1 out of 5 stars 975 customer reviews

4.1 out of 5 stars
Best Sellers Rank #526 in Electronics > Computers & Accessories > Data Storage > Internal Hard Drives
Date first available at Amazon.com August 29, 2009

Warranty & Support

Product Warranty: For warranty information about this product, please click here


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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: 1.5 TB
I've watched the issue with these drives carefully for about 2 months. It looks like Seagate solved the problem and that a vocal few were ever really affected. By few I mean relative to the thousands sold. And I am not defending Seagate. This whole fiasco was unacceptable.

I picked up 8 of these drives. I'm running them in 4 separate DLink DNS-321 RAID boxes. I've copied about 4TB of data back and forth across them for days. My only firmware update needed was for the DLink so that it could properly handle the new 1.5TB drives.

In the end I believe all is well with both the drives and the DLink DNS-321. I will of course update this review immediately if I see any problems.

We are able to watch movies from this drive arrangement on 3 computers simultaneously across a 100mb network from the same drive while adding new files to the drive from a 4th computer.

This means I can be adding movies unattended to the system while watching an Epic Man movie on the plasma in the living room... while the kids are watching Monsters Inc in the bedroom... and the wife is off watching some chic flick in the Den. :)

The combination of DLink and these 1.5TB drives is fantastic and seems as stable as the WD 1TBs I was using previously.

Don't confuse your drive DIEING after a week with the previous firmware problems of this particular drive. Blame the vendor that shipped the drive like it could bounce !

I will say I am sick of Amazon, Tiger and other vendors shipping hard drives like they are indestructible ROCKS. Even if they arrive working, this inadequate packaging is certainly taking years off the life of our drives.
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Size: 1.5 TB
Update: I wrote this review before a firmware update was made available and my comments reflect the situation at the time. When the updates were made available, I flashed my 5 drives and they've been working fine ever since. I'd change the rating to a 4 star if the editor allowed.

I and many others have been experiencing serious problems with these drives including:

* dropping out of RAID configurations for no apparent reason
* being ejected from a RAID configuration due to read / write errors
* freezing for up to 30 seconds

These problems have been reported on Linux, Vista, XP, and OS X and appear to be related to how the drives flush their write cache. In many cases, the drives work fine for days or weeks before problems appear. In my case, I bought five of these for my Qnap TS-509 Pro and they worked great for about two weeks under various read / write loads. Since then, I've had all three of the problems mentioned above on different drives and they are growing progressively worse. The latest problem was three of the five drives disappearing from the RAID5 volume while I was attempting to copy the files to a different NAS.

A work-around that has been successful for some is to disable the disk write cache. Other than the obvious performance penalty and reduced lifespan this causes, some systems do not provide a means of disabling disk write cache (such as the Qnap).

References to these problems can be found on many forum threads:

Qnap: [...]
Netgear: [...]
Synology: [...]
AVSForum: [...]
macrumors: [...]
Ubuntu: [...]
Slashdot: [...]
Amazon: http://www.amazon.com/review/product/B00066IJPQ/ref=dp_top_cm_cr_acr_txt?_encoding=UTF8&showViewpoints=1

The most informative thread may be found on Seagate's own support forum, where it appears Seagate is blaming everyone but themselves for the problem:

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Size: 1.5 TB Verified Purchase
Update Review on September 22, 2009 **** 4 Stars

At the beginning of this year, I wrote a scathing review of this product after numerous problems. To summarize, Seagate had a total mess on their hands with 3 different hardware revisions and over a dozen firmwares out in the span of a couple months. There were massive problems, and Seagate tech support was completely overwhelmed. I had problems of drives freezing, terrible noises on start up, reallocated sectors, and the "click of death".

Fast forward. I have had the latest hardware revision -302 with firmware CC1H on 3 drives for about 8 months. These have had NO problems. I just purchased my 4th of these drives from Amazon a couple days ago, and I can confirm they are still -302 hardware and CC1H firmware. This latest one was very well packed by Amazon in a "manufacturer-type" drive box. No issues with the current packaging (although some in the past from Amazon were questionable). A full surface scan came up with no errors. I have added a customer image of my oldest drive. It is important to realize that the massive complaints of problems and failures could be with the earlier hardware revisions and firmware.

I can't give this product 5 stars due to the past problems, and because there are no guarantees the ones I have won't fail before the warranty is up. (The new 2TB green drives are now having massive failures/problems.) Of the 3 I have, only 1 has "normal" hours on it, as the other 2 were backup only. I have had other drives fail in the past couple years including a WDC Raptor, a WDC laptop drive, and a Deskstar, so I believe this last version is no worse than others out there.
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