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  • Seagate Momentus 5400 500GB 5400RPM SATA 3Gb/s 8MB Cache 2.5 Inch Internal NB Hard Drive ST9500325AS-Bare Drive
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Seagate Momentus 5400 500GB 5400RPM SATA 3Gb/s 8MB Cache 2.5 Inch Internal NB Hard Drive ST9500325AS-Bare Drive

by Seagate
337 customer reviews
| 51 answered questions

List Price: $109.99
Price: $42.00 + $3.99 shipping
You Save: $67.99 (62%)
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From $64.99
  • 5,400 RPM Spin Speed, 8 MB Cache Buffer
  • SATA 3.0Gb/s Interface, 500 GB Capacity
  • Average latency 5.6 msec, Random read seek time 14 msec
  • Best-Fit Applications; Mainstream laptops, External storage solutions/boxes, Industrial applications requiring a smaller form factor
  • Ships in Certified Frustration-Free Packaging
  • SATA 3.0Gb/s Interface, 500 GB Capacity. Three Year Warranty
18 new from $42.00 10 used from $40.00 3 refurbished from $30.10
This item’s packaging will be visible when delivered and cannot be gift-wrapped.

Frequently Bought Together

Seagate Momentus 5400 500GB 5400RPM SATA 3Gb/s 8MB Cache 2.5 Inch Internal NB Hard Drive ST9500325AS-Bare Drive + TOMTOP Super Slim Hard Disk Drive Mounting Bracket for PS3 System CECH-400x Series
Price for both: $47.01

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This item: Seagate Momentus 5400 500GB 5400RPM SATA 3Gb/s 8MB Cache 2.5 Inch Internal NB Hard Drive ST9500325AS-Bare Drive
Customer Rating (337) (78) (314) (1776)
Price $ 42.00 $ 35.20 $ 45.99 $ 59.96
Shipping $ 3.99 FREE Shipping FREE Shipping FREE Shipping
Sold By AMTECH goHardDrive Digitalet Amazon.com
Hard Disk Size 500 GB 320 GB 500 GB 500 GB
Speed 5400 rpm 5400 rpm 5400 rpm 5400 rpm
Form Factor 2.5 inch 2.5 inch 2.5 inch 2.5 inch
Hardware Interface Information not Provided Information not Provided Information not Provided Information not Provided
Cache Memory Installed 8 MB 8 MB 16 64
Add to Cart Add to Cart Add to Cart Add to Cart

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Product Description

Product Description

Seagate ST9500325AS Momentus 5400.6 SATA 3Gb/s 500-GB Hard Drive, The 500-GB Seagate® Momentus® 5400.6 drive offers the best combination of performance, capacity, mobility and durability in a laptop hard drive to meet the demanding requirements of today’s notebook multimedia usage models. Able to withstand up to 1000 Gs of shock, this highly reliable 2.5-inch drive is perfect for notebook or external storage applications.

From the Manufacturer

Seagate Momentus 2.5" Internal Hard Drive

Energy Efficient, High Capacity Storage

Engineered specifically for low-power applications, the Momentus internal drive has a 5400RPM spindle speed and a 8MB cache to provide energy-efficient performance at whisper-quiet acoustic levels. With reduced power consumption and heat generation, this drive will reduce power costs up to 50% over the life of the system compared to standard drives. It is optimized for standard laptops and small form factor PCs.

Seagate Momentus Laptop Hard Drive
Robust design and high shock tolerance enable mobility in rugged environments
Durable Mobility Anywhere, Anytime

Momentus is the world's most feature-rich 2.5-inch drive for laptop upgrades and external enclosures. The Momentus drive family offers innovative options, capacities to 750GB, two performance speeds and significant feature options. The Seagate Momentus drives are perfect for any standard laptop and meet your specific upgrade needs, whether it's more capacity, higher performance, lower power consumption, more security, or greater reliability.

With speeds of 5400 RPM, the Momentus series brings quality and reliability to high-performance laptops, workstations, and gamer systems, as well as mainstream laptops, netbooks and external storage enclosures. Momentus drives are ideal for any consumer solution where robustness and data reliability are a necessity.

Seagate Momentus Laptop Hard Drive
The best combination of performance, capacity, mobility and durability in a laptop hard drive

Momentus Series Technology Features

SmartAlign Technology for Easy 4K Migration

A change is coming to the hard drive industry. The smallest sector of organized data on a drive is moving from 512 to 4,096 bytes. The new format, known as Advanced Format (AF) 4K, offers advantages like increased efficiency, but migrating your drive can be challenging. Luckily, Seagate is ready to help you make a seamless transition to 4K sectors. Seagate's SmartAlign technology automatically does the work of AF migration in the background. The drive's performance is not affected, and there is no need for time-consuming utilities required by other AF-enabled drives.

Seagate Momentus 2.5-Inch Drive Specifications

Momentus 5400 Drives Momentus 7200 Drives
Momentus 750GB1 500GB1 320GB1 250GB1 750GB1 500GB1 320GB1 250GB1
Interface 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 SATA 3Gb/s NCQ
Cache (MB) 16 8 8 8 16 16 16 16
How Much Will it Store?
Digital Music Digital Music (Hours) 12,495 8,330 5,331 4,165 12,495 8,330 5,331 4,165
Digital Photos Digital Photos (Files)
Average file size using cameras highest resolution JPEG mode
240,000 160,000 102,400 80,000 240,000 160,000 102,000 80,000
Digital Videos Digital Videos (Hours) 750 500 320 250 750 500 320 250
DVD Quality DVD Quality (Movies)
Based on standard 2 hour movie
187 125 80 63 187 125 80 63
HD Video HD Video (Hours)
Based on H.264 compression at a 6.75Mbs bitrate
187 125 80 63 187 125 80 63
1One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes when referring to drive capacity.

Product Details

  • Product Dimensions: 2.8 x 4 x 0.4 inches ; 3.5 ounces
  • Shipping Weight: 5 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B001R4BBL0
  • Item model number: ST9500325AS
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (337 customer reviews)
  • Amazon Best Sellers Rank:
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: September 13, 2007

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

74 of 77 people found the following review helpful By Jeff Christlieb on June 13, 2010
Verified Purchase
I used this drive for my PS3. Very simple to install, the PS3 asked to format my new drive, and after the format, I had 500 gigabytes of space. My old drive was only an 80 gig.
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47 of 51 people found the following review helpful By M. BOUGHTON on April 14, 2009
Verified Purchase
I upgraded my PS3 hard drive with this 500 gb. The process was very simple and the product works great. The shipping and delivery were quick. I have no complaints.
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30 of 36 people found the following review helpful By R. Inga on February 20, 2010
Verified Purchase
I recently purchased this Seagate Momentus 500 GB to upgade my 160 GB PS3. I got the product earlier then scheduled from Amazon, which is always a good thing. I installed it the sameday, the installation was simple, if you did your homework on upgrading the PS3 HDD. After installing the new 500 GB HDD I turned on the PS3 and it sounds very quiet. I recommend the product for anyone who wants a little more breathing room in their PS3, its a perfect fit and works Great !!
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17 of 21 people found the following review helpful By T. R. Quintana Alvarado on October 6, 2009
I was looking foward to upgrade my PS3 hard drive (80G) and I found that the 500G drives were getting popular,the two choices I found were the Seagate Momentus and the Western Digital Scorpio Blue. The WD is a bit cheaper, and was the one with the most reviews, but I heard the Seagate is more reliable (3 yrs warranty for the WD VS 5 yrs for the Seagate). So I chose my destiny and bought the Seagate. This is the first time I buy a hard drive and install it myself, but the process is fairly simple and quick, I just had to follow the instructions I found on the web (back up your save files, power off, remove the cover, the blue screw, pull out the old drive, remove the 4 screws from the drive frame, and install the new one in reverse order).

The problem was wen I tried to power up, the PS3 didn't recognize the new drive, and instructed me to insert a flash drive with the sistem files. So I downloaded them from the Playstation website and saved them on to the flash drive (in the ps3 folder I created, according to the printed instructions that came with the ps3 unit) and voila!, the hard drive could be formatted, and I begun to recover my files I backed up.

Several reviews mention that this model is incompatible with the ps3, perhaps it is because the people who wrote them encountered the same problem as I, and didn't have the ps3 sistem files ready in the flash unit. I don't know if this problem occurs with the WD drive, but I think is not much trouble at all to fix it. A word of advice I found at the web is that the drive you choose has to operate at 5400 RPM, because there are faster (and more expensive) drives that use 7200 RPM, like the Seagate Barracuda or the WD Scorpio black, but it is rumored that they could be not compatible with the ps3, this could be wrong though.

I have not found problems so far (installed it on oct 04), loading time is very fast, it is quiet, and most of all, BIG space, no more worries!
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7 of 8 people found the following review helpful By WesCyde on November 13, 2012
Verified Purchase
So I received this HDD yesterday as a replacement for my 160GB Slim. I marked the rating as a 4 for two reasons. 1 because I just installed it I want to give it some more time before I give it a perfect 5 and that the packaging was a bit laxed In my opinion. It just came wrapped in thin bubble wrap in the silver type enclosed bag most hard drives come in with some air pouches inside. I was expecting a box or at least it tied down in the box so it could not move around.

As for the HDD itself so far it's working just fine after installing it. If you have never replaced your HDD in your PS3 Slim it was a very easy process. This is a 500GB HDD that equates to 465GB once installed due to how the system reads it. After the PS3 takes up its own internal space you are left with 412GB for games etc. But that now pure space you have left to use up where a 160GB PS3 left me with about 112GB give or take.

As far as the install it was very easy into the PS3 slim, in my opinion even easier than the old Fat PS3. However new to the slims is once you replace the HDD make sure you have the latest PS3 System update ready to go on a USB drive or else you will not be able to restart your PS3 and sign on to do your restore of data that you backed up.

It seems fast, very quiet so far and in about a month I will update once I it's been used for a little bit. The Price is great for this HDD which I saw for about $20 more a few other places.

UPDATE 20 June 2013- So its been about 7 months since I installed this HDD on my PS3 and it runs like a champ. Still have close to 300GB of space after Downloading many games from PS+ instant game collection. Its very quiet and has never once had any issues. I would highly reccommend this drive to anyone looking for an upgrade.
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6 of 7 people found the following review helpful By Johnny Lemonhead VINE VOICE on June 26, 2009
I expected this drive to work, of course, but I did not expect it to be so quiet. It has been my experience that Seagate drives are the most robust and dependable, but the reliability has typically come at the expense of noise levels higher than that of comparable drives. As an owner of the 500GB WD Blue 2.5" drive (which is quieter than a whisper) I didn't expect this drive to be as quiet but I decided to give it a shot anyway because I needed one in a pinch and couldn't get another WD model on such short notice. To my surprise, this drive is just as quiet as the WD model. Seagate has apparently made great strides in this department. It is my understanding that the WD model consumes slightly less energy than this drive does, but we are not talking about a large difference and I do trust Seagate reliability more than WD at the end of the day. So, in summation this seems to be a great 500GB 2.5" drive. If something changes down the road I will return and amend my review as I always do when new information arises.
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