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  • If your drive stops working, the Seagate Rescue data recovery plan will recover the data from the failed drive and return it to you on a new piece of external 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). Not eligible on enterprise class or multi-drive devices
  • 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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2-Year PC Peripherals Protection Plan

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Seagate Momentus XT 500 GB 2.5 Inch Solid State Hybrid Drive ST95005620AS

4.3 out of 5 stars 763 customer reviews
| 13 answered questions

Price: $69.90 & FREE Shipping
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500 GB
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  • Solid state hybrid drive delivers SSD-like performance with hard drive capacity options by storing most accessed data on 4 GB SLC SSD
  • Adaptive Memory technology customizes performance by aligning to user needs for overall improved system response
  • 80 percent faster performance than traditional 7200-RPM drives in PCMark Vantage benchmark scores
  • Low heat and vibration - quiet operation without giving up storage capacity and affordability
  • Ships in Certified Frustration-Free Packaging
23 new from $62.00 9 used from $37.00 9 refurbished from $55.00
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Frequently Bought Together

  • Seagate Momentus XT 500 GB 2.5 Inch Solid State Hybrid Drive ST95005620AS
  • +
  • StarTech USB 3.0 to 2.5" SATA III Hard Drive Adapter Cable w/ UASP - SATA to USB 3.0 Converter for SSD/HDD - Hard Drive Adapter Cable
Total price: $80.94
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Technical Details

Capacity: 500 GB
  • Brand Name: Seagate
  • Model Number: ST95005620AS
  • Manufacturer Warranty Description: 3 Year
  • Form Factor: 2.5 inch
  • Hard Disk Rotational Speed: 7200 RPM
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Compare to Similar Items

This item: Seagate Momentus XT 500 GB 2.5 Inch Solid State Hybrid Drive ST95005620AS
Customer Rating 4 out of 5 stars (763) 4 out of 5 stars (3066) 4 out of 5 stars (1023) 4 out of 5 stars (315)
Price $69.90 $66.99 $91.00 $89.99
Shipping FREE Shipping FREE Shipping $3.90 FREE Shipping
Sold By Finity India -Fast & Free Shipping Amazon.com Techdeal LLC Amazon.com
Hard Disk Size Information not provided 500 GB 750 GB 1 TB
Speed 7200 RPM 5400 RPM 7200 RPM 5400 RPM
Form Factor 2.5 inch 2.5 inch 2.5-Inch 2.5 inch
Hardware Interface sata 3 0 gb sata 6 0 gb sata 6 0 gb sata 6 0 gb
Cache Memory Installed 32 64 32 64
Add to Cart Add to Cart Add to Cart Add to Cart

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Product Description

Capacity: 500 GB

Product Description

The Seagate Momentus XT drive offers hybrid storage with Adaptive Memory technology, enabling the drive to deliver higher capacities up to 500 GB and SSD-like performance. The Momentus XT drive is designed for all standard laptop PCs and is OS-, driver- and software independent, making this drive easy to integrate and easy to use. Adaptive Memory technology enables the drive to tailor its performance to the user. Whether you are gaming, editing digital media or crunching numbers, the performance is optimized and ready for your next move. Adaptive Memory technology is a Seagate data management technique that constantly monitors and quickly recalls data usage and preferences. It places files and data that the user will likely access again and again into the solid state portion of the drive. When the user requires the data or application file, it already sits in an instantly accessible location, thereby customizing system performance for the user. Constant monitoring dynamically improves overall response time based on personal usage. You can perform at your best no matter how you use your laptop PC.

From the Manufacturer

Seagate Momentus XT Solid State Hybrid Drive

Speedy, Spacious, and Easy to Own

Get the Seagate Solid State Hybrid Drive and supercharge your laptop. SSHD combines the blazing performance of a solid state drive and the huge capacity of a hard disk, all with a budget-friendly price-tag. The Seagate SSHD is compatible with virtually any laptop computer, any OS, and any application, so you get plug-and-play, revved-up performance from any system.

Seagate Momentus SSHD Lets You Store More
The Seagate Solid State Hybrid Drive boots in seconds, not minutes
Performs Like a Solid State Drive

The Seagate Solid State Hybrid Drive boots in seconds, not minutes. SSHD revs up your machine for peak performance (up to 4x faster than 5400 RPM hard drives). Plus, it gets faster as it gets to know you: NAND flash memory and Adaptive Memory technology work together to learn your specific use patterns and continually optimize your performance.

Seagate Momentus SSHD
Play, create and store as much digital content as you want; up to 750 GB in capacity
Store More, Without Compromise

Never sacrifice capacity for performance again. Have it all with a Seagate Solid State Hybrid Drive, where killer performance meets massive storage. Whether you're into gaming, HD video, photography or music--SSHD lets you play, create, and store as much digital content as you want, up to 750GB. It all adds up to the storage you demand with the performance you crave in an easy-to-install package.

Seagate Momentus SSHD Gives You the Best Bang for Your Buck
Simple to install, simple to run while simply saving your bottom line
Best Bang for Your Buck

The smart money is on the Seagate Solid State Hard Drive. No other drive costs less while delivering as much. Seagate SSHD costs just slightly more than a traditional hard drive, yet delivers dramatically improved performance--without compromising on storage. It's simple to install, simple to run, and simple to save on your bottom line.

Seagate Momentus SSHD Comparison Chart
Click here to see why the Seagate SSHD is the smart, affordable choice.
Why Choose the Seagate Solid State Hybrid Drive?

Seagate SSHD is the smart, affordable choice for high-end laptops and workstations, high-performance gamer laptops, fast external enclosures using USB 3.0 or eSATA, and small form factor PCs. Seagate SSHD provides 4x faster performance than traditional 5400-RPM drives in PCMark Vantage benchmark scores, thanks in part to Adaptive Memory technology that optimizes as it learns your use patterns. It's compatible with any SATA-standard laptop PC and offers quiet operation without compromising storage capacity or affordability.

Seagate Momentus XT Solid State Hybrid Hard Drive Technical Specifications

Seagate Momentus XT Solid State Hybrid Hard Drives 750GB1 500GB1 500GB1
Model Number ST750LX003 ST95005620AS STAN500100-Retail Kit
Interface Options SATA 6Gb/s SATA 3Gb/s SATA 6Gb/s
Package Contents Momentus XT SSHD Momentus XT SSHD Momentus XT SSHD
Mounting screws
Interface cables
SATA Transfer Rate, Max Ext (MB/s) 600 300 300
Cache(MB) 32 32 32
Spindle Speed (RPM) 7200 7200 7200
Reliability/Data Integrity
Nonrecoverable Read Errors per Bits Read 1 in 1014 1 in 1014 1 in 1014
Annualized Failure Rate (AFR) 0.5% 0.5% 0.5%
How Much Will it Store?
Digital Music Digital Music (Hours) 12,495 8,330 8,330
Digital Photos Digital Photos (Files)
Average file size using cameras highest resolution JPEG mode
240,000 160,000 160,000
Digital Videos Digital Videos (Hours) 750 500 500
DVD Quality DVD Quality (Movies)
Based on standard 2 hour movie
750 125 125
HD Video HD Video (Hours)
Based on H.264 compression at a 6.75Mbs bitrate
187 125 125
1One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes when referring to hard drive capacity.

Product Information

Capacity:500 GB
Product Dimensions 2.8 x 4 x 0.4 inches
Item Weight 3.8 ounces
Shipping Weight 8.8 ounces (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 ST95005620AS
Customer Reviews
4.3 out of 5 stars 763 customer reviews

4.3 out of 5 stars
Best Sellers Rank #789 in Electronics > Computers & Accessories > Data Storage > Internal Hard Drives
Date first available at Amazon.com May 24, 2010

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: 250 GB
I have the 500GB version of this drive. I also use and have used SSD's with SLC and MLC flash, JMicron controllers, Samsung Controllers, Barefoot controllers, and SandForce controllers on 32-bit and 64-bit operating systems. I've used several generations of Raptors, and 3Ware RAID controllers. I'm not saying that to brag, I'm saying it to point out I have a reasonable basis for comparison and expectation.

Here's what the drive does well: It's alignment- and OS-agnostic, so it does not care if you run it unaligned on older XP systems. It will, over about 5 cycles, learn what you do and optimize it. You will notice your system boots much faster. It excels on systems where you boot into your OS and do the same basic tasks, say, open MS office and Firefox and Outlook.

Here's what the drive does not do well: If you are constantly changing what you run on your computer, your drive will constantly be "learning" what you do. I have also found it does not do well with remote desktop apps that are constantly caching image data.

Here's what the drive does that makes it no better or worse than any other mechanical drive: If you are using the drive to store music or videos or such, they are going to go the the platters. Then it's just another very good, high performance 7200RPM notebook drive. Nothing wrong with that at all.

Here's the KILLER APP reason to buy this drive: I took a 32-bit Vista Home Premium laptop that was so congested and clogged with programs, leftovers of removed programs, fragmentation, you name it, and just cloned it to this drive. The mechanical drive it was on took literally 5 minutes to get to a useful state on the desktop. This drive, after about 5 boots, learned that our family needed Vista OS, Chrome for Farmville, and iTunes.
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Size: 500 GB
I replaced my 500GB 5400rpm WD with this Momentus XT after doing exhausting research. I use my MacBoook Pro laptop for analytical work involving large datsets. Here is why I settled on the Momentus XT vs an SSD.

Momentus XT
- 4GB SLC SSD integrated into the hard drive for speedy access commonly used files
- Although not as fast as an SSD, but soooo much cheaper than 300GB+ of SSD space.
- More vibration and a little more noise than my WD 500GB, but not significantly so.
- Mac OS X doesn't support TRIM. I was concerned that a SSD drive would slow down significantly overtime without it.
- Toms Hardware highly recommended it over other 7200 rpm laptop hard drives. See their review for all the techy details.

Note that the integrated SSD is used only for reading, not for writing. It essentially clones your commonly used files on the 4GB SSD.

If you are looking for a sweet spot between speed and space this is it. The Momentus has a 4GB SLC SSD integrated into the hard drive which allows for very fast reads of commonly used data. This translates into really fast application loading like an SSD. It uses a learning algorithm to decide what to store on the SSD so it takes some time to get to optimal performance.

Most people have a lot of data that is accessed infrequently on their hard drive. Thus an SSD is overkill since there isn't much benefit to to storing infrequently accessed on a really fast drive. If you are accessing almost all of your data all the time (like in a server application) then maybe an SSD is for you. For the rest of us there is the Momentus XT.

I am very particular about the noise with my MacBook Pro. The stock 250GB Seagate hard drive my laptop shipped with was virtually undetectable.
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Size: 500 GB
I've read a lot of reviews, some good, some bad. I think some people have this idea that the product will speed everything up all the time, and this sets bad expectations. What this drive will do is cache often used data, such as core Operating System files used at boot and commonly used applications, and store that data in its 4GB SSD-like cache. If your drive already reads and writes pretty fast, in the neighborhood of 75-100MBps (megaBytes not bits), other than boot up and application loading, you aren't going to notice much of a difference.

I use Apple's OS X Snow Leopard, and it definitely boots faster (1 minute 30 seconds prior to this disk, now 55 seconds from power on to ready + all my startup apps running), and commonly run applications also start up noticeably faster.

I upgraded from a bit slower drive, so I see some performance gain there, but nothing huge.

Overall I got the disk read speeds I was looking for -- faster boot, faster common app loading, and an overall boost in performance by upgrading from a slower drive altogether.

This drive won't change your life, unless you are booting several times a day or loading the same data repeatedly. It's a fine drive with the benefit of faster boot and common app loading times, nothing more.
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Size: 500 GB Verified Purchase
If you are considering this drive based on reviews from professional reviewers, save yourself a lot of time, money and frustration by avoiding the Momentus XT drive.

This drive sounded just like what I was looking for, near SSD performance at a reasonable price. After installing the drive in my late 2008 MacBook Pro, it seemed a bit quicker and boot up time was noticeably faster. Unfortunately, a few days passed and the system started to hang for 5-10 seconds every 5 minutes or so. The system hangs then became longer and more frequent rendering the machine completely useless. A visit to the Seagate user forum quickly revealed that this problem is well known and very common.

I removed the Seagate Momentus XT drive and put the original Mac drive back in and all of the problems went away.

The drive was purchased and originally installed in October of 2010. After giving up on the drive and not returning it in time I went back to the Seagate site in December of 2010. To my pleasant surprise, Seagate had just released a firmware update to fix the problems. After installing the update, I installed the operating system from scratch. The system ran better than ever... I really thought this was a great drive. Then, the same problems came back, with a vengeance! The lock ups started after 4 days of use. This time there wasn't much of graceful decline. The system started to lock up as before and within 15 minutes, it was unusable. Another visit to the Seagate forums and I discovered others were experiencing the same issue.

While I like the premise of this drive, I would not purchase or recommend it.

Good luck!
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