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Seagate Momentus 7200 750 GB 7200RPM SATA 3Gb/s 16 MB Cache 2.5 Inch Internal Notebook Hard Drive -Bare Drive ST9750420AS

by SEBA9
| 13 answered questions

List Price: $109.99
Price: $67.50 + $0.50 shipping
You Save: $42.49 (39%)
Only 18 left in stock.
Ships from and sold by goHardDrive in easy-to-open packaging.
750 GB
  • Innovative options and features - the power to transform from ordinary to extraordinary
  • 7200 RPM delivers a constant high-performance boost with capacity options up to 750GB
  • Seagate SmartAlign technology provides a transition to 4K sectors without the need for software utilities
  • Ships in Certified Frustration-Free Packaging
  • Two Year Warranty
10 new from $67.50 10 used from $50.00 1 refurbished from $114.46

There is a newer model of this item:


Frequently Bought Together

Seagate Momentus 7200 750 GB 7200RPM SATA 3Gb/s 16 MB Cache 2.5 Inch Internal Notebook Hard Drive -Bare Drive ST9750420AS + Vantec NexStar TX 2.5-Inch SATA to USB 2.0 External Hard Drive Enclosure
Price for both: $75.08

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Special Offers and Product Promotions

Size: 750 GB
  • Buy Used and Save: Buy a Used "Seagate Momentus 7200 750 GB 7200RPM SATA 3Gb/s 16...” from Amazon Warehouse Deals and save 54% off the $109.99 list price. Product is eligible for Amazon's 30-day returns policy and Prime or FREE Shipping. See all Used offers from Amazon Warehouse Deals.

Technical Details

Size: 750 GB
  • Brand Name: SEBA9
  • Model: ST9750420AS
  • Hard Disk Size: 750 GB
  • Hardware Platform: CONSUMER_ELECTRONICS
  • Form Factor: 2.5-Inch
  See more technical details

Product Details

Size: 750 GB
  • Product Dimensions: 4 x 2.8 x 0.4 inches ; 4 ounces
  • Shipping Weight: 6.4 ounces (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B004MME0N0
  • Item model number: ST9750420AS
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (400 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: July 16, 2010

Product Description

Size: 750 GB

From the Manufacturer

Seagate Momentus 2.5" Internal Hard Drive

High Performance Storage

The high performance Momentus internal drive has a fast 7200RPM spindle speed and a large 16MB cache to provide desktop-like performance and deliver a sustained data transfer rate of 76MB/s. Native Command Queueing Technology dramatically increases performance by organizing incoming commands in the most efficient order. The Momentus internal drive is optimized for mobile computing and small form factor PCs that need to run more demanding applications like video and photography editing, video playback and computer games.

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 7200 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 Description

Seagate Momentus 7200 750 GB 7200RPM SATA 3Gb/s 16 MB Cache 2.5 Inch Internal Notebook Hard Drive -Bare Drive ST9750420AS

Customer Questions & Answers

Customer Reviews

It has been working great so far, and it's quiet.
Ryan
Seagate has always been a top shelf product, anyone who has computer experiance will tell you it always a very good product.
James Williams
I would recommend this to anyone who needs a hard drive.
connie sewer

Most Helpful Customer Reviews

115 of 127 people found the following review helpful By Slept Thru It on December 27, 2011
Size Name: 750 GB Verified Purchase
Before I get into specifics, this caution - note the date and model on this (and other) Seagate internal hard drive reviews. Amazon lumps together drives of differing technology, size, and generation into one review pile. Look for the reviews that actually apply to the drive you're considering.

Even though I read multiple reviews warning that this 750GB drive is prone to failure, I'm an optimist so I bought one anyway. About two weeks later, my computer crashed with a BSOD (Blue Screen of Death) which turned out to be due to a bad sector that had developed in a critical system file. I ran a repair, got the machine working again, and two days later got another BSOD from more newly-developed bad sectors. The drive's built-in SMART diagnostic system is now predicting imminent drive failure. Given the number of people who have had similar experiences with this Seagate 750GB internal laptop product, one that has not been on the market that long, Seagate should stop selling it until they fix the problem.

If you're even more optimistic than I am and buy this drive anyway, be aware of another problem (albeit fixable) that nobody will tell you about in advance. This 750GB drive uses a new 4k sector size. Seagate advertises that they have built-in code that should make the sector size transparent to your system. While it seems to be true that the drive doesn't require you to install special software to accommodate its sector size, nevertheless your machine may require that you install an updated version of Intel's Matrix Storage Manager before the drive will function properly. You will get errors that don't tell you that this is the problem.
Read more ›
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20 of 21 people found the following review helpful By K. Biswas on January 15, 2011
Size Name: 750 GB Verified Purchase
I needed a hard disk for my Sony Vaio laptop as I was getting cyclic redundancy check failures. I wanted a 1 TB hard disk (after all, I am spending the bucks, why not go for the trophy capacity) - but soon realized after some research that all 1 TB 2.5" hard disks in the market now are little thicker (taller) than most laptops have space for. Unless yours is a new laptop that can take a 12.5 mm thick hard disk, you have to stick to the standard 9.5 thick ones - which means you cannot get 1 TB, at least now. I am sure 6 months down the line, WD or Seagate or Samsung's gonna come up with a regular sized 1 TB disk. Anyway, I downgraded my capacity wish to 750 GB, and after some research, zeroed in on this one - reading some good favorable reviews on newegg and tigerdirect. I went with Amazon because of Amazon's great return policy (it is a hard disk to be shipped on a truck after all). Fit perfectly. Lots of space now, don't know what to do with it actually! Unless this one dies on me before its average life expectancy is over, I am going to stick to this 5 star review!
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14 of 14 people found the following review helpful By Dave on November 18, 2012
Size Name: 750 GB Verified Purchase
I originally bought a Western Digital WD Scorpio Black 750 GB SATA 3 GB/s 7200 RPM 16 MB Cache Internal Bulk/OEM 2.5-Inch Mobile Hard Drive for use in my mid-2009 15-inch MacBook Pro (MacBookPro5,4). It had a major problem which I believe is due to a defect in the design of this version of the MacBook Pro. I replaced the Scorpio with a Seagate Momentus with comparable specs, and it has been working great.

The Seagate drives have an important feature which the Western Digital drives do not: a jumper which allows you to limit the speed of the SATA link to 1.5Gb/s. This turned out to be critical for me, since my version of the MacBook Pro apparently has problems with 3Gb/s drives. Lowering the transfer speed to 1.5Gb/s fixes everything. I'm probably reducing the performance of the drive slightly, but that's irrelevant, since the Scorpio at 3Gb/s was unusable to due the SATA link constantly resetting, each time freezing my computer for 30 seconds.
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14 of 14 people found the following review helpful By Phillip Jou on June 27, 2012
Size Name: 750 GB Verified Purchase
Got this 720 GB HDD as an expansion hard drive for my Playstation 3 (fat model) and its been working great (installed for three weeks now.) No compatibility problems with upgrading from 5400 rpm to 7200 rpm. When I run the PS3 for hours I can hear the fan going louder to cool the system, but no overheating problems so far. Completely recommend it if you want a cheap upgrade.
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24 of 28 people found the following review helpful By Raf on December 11, 2010
Size Name: 750 GB Verified Purchase
I used this HDD on my MacBook Pro instead of the original one. I expected it to be much faster as it's 7200RPM. But that's not the case.
Speed is ok while accessing data files, but it still takes some time when launching "heavy" applications.

My only problem now is trying to launch BootCamp on vmware Fusion (Win Vista on BootCamp runs great on its own). I still need to get that issue fixed!

I didn't notice any noise from the drive as I read in some reviews, so I believe it's quite enough for whoever works in the night when there's silence surrounding him like I do.

Great product and recommended for whoever is looking to expand his MBP's HDD.
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17 of 19 people found the following review helpful By Radix on September 11, 2011
Size Name: 750 GB Verified Purchase
I purchased one of these to replace my laptop hard disk. Everything was working fine for about 5 days, and then the disk failed - badly. There were many failed sectors which could not be remapped, and eventually the disk couldn't be read at all.

Amazon set up an exchange for me I got a second disk. This process was really quite nice because they shipped me the replacement disk before receiving the failed one, and they shipped it next day (the original shipping method I had selected).

The replacement disk lasted for 5 days also before failing. At this point I gave up on the seagate momentus, and returned it for good. It is possible, but unlikely, that I just happened to get two bad disks in a row. I would suggest looking to another drive for your storage needs for the time being.
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