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Seagate Momentus XT 750 GB 7200RPM SATA 6Gb/s 32 MB Cache 2.5 Inch Solid State Hybrid Drive ST750LX003

by Seagate
4.3 out of 5 stars 1,015 customer reviews
| 100 answered questions

Available from these sellers.
  • 750 GB 7200 RPM SSD Hybrid Drive
  • Solid state hybrid drive delivers SSD-like performance with hard drive capacity options
  • 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
  • Ships in Certified Frustration-Free Packaging
8 new from $140.00 7 used from $91.99 2 refurbished from $114.99
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Product Description

Product Description

The Seagate Momentus XT solid state hybrid drive combines SSD-like performance with affordable high-capacity hard drive storage for laptops, external backup and small form factor desktop PCs. This drive is designed for all standard laptop PCs and is OS-, driver-and software-independent, making it easy to integrate and easy to use.3-Year Limited Warranty.

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 6Gb/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

Technical Details

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Summary : Screen Size, Screen Resolution, Graphics Coprocessor, Graphics Card RAM
Hard Drive 750 GB
Brand Name Seagate
Item model number ST750LX003
Item Weight 4 ounces
Product Dimensions 4 x 2.8 x 0.4 inches
Item Dimensions L x W x H 3.95 x 2.75 x 0.37 inches
Hard Drive Rotational Speed 7200 RPM

Additional Information

Customer Reviews
4.3 out of 5 stars 1,015 customer reviews

4.3 out of 5 stars
Best Sellers Rank #298 in Computers & Accessories > Data Storage > Internal Solid State Drives
#770 in Computers & Accessories > Data Storage > Internal Hard Drives
Shipping Weight 9.6 ounces
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
Date First Available November 29, 2011

Warranty & Support Return Policy:You may return any new computer purchased from that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here

Customer Reviews

Top Customer Reviews

Verified Purchase
I have a 256GB SSD in my desktop computer, so I'm writing this review as someone who is accustomed to that kind of performance.

The 750GB version of this drive is awesome. (I've used the previous model, the 500GB Momentus XT, and it was "pretty good." There's more than just a capacity upgrade to this new version.) I installed the 750GB Momentus XT into my new HP Envy 15, and I have to admit that it's the perfect compromise drive. The Envy has only a single drive bay and the optical isn't removable, so an SSD / HDD combo (one for the OS and one for storage) isn't an option. I'm a wedding photographer who needs to get work done on the road, and I regularly need to carry 400+ GB of data around, so a pure SSD solution (at least for a reasonable price) also isn't an option.

The drive learns quickly to cache the most used data, and it really accelerates anything you use frequently. My laptop boots very fast. Almost as fast as my desktop. Same for Chrome, Adobe LightRoom, and all the other apps I use on a daily basis.

If you're looking for an affordable solution that hits the sweet spot between SSDs and HDDs in performance and capacity, this is it.

Note to Seagate: Make a 2+TB desktop version of this drive with 32GB of NAND, and I'd be all over it!
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Verified Purchase
The original review is below. The negative initial warranty experience was also shared by others as reported in comments. But, the important parts to read are the updates at the end which explain the current 5 star rating. My eventual outcome was positive.

I hope the review with updates are helpful to potential seagate purchasers.

************** original review ***************

The seagate momentus XT 750 does a really nice job of providing SSD drive like performance and ample space for data for a fraction of the cost of a pure SSD. Caching when well used can get a large percentage of the perceived speed advantage of the much faster overall drive by saving the most frequently used data in high speed storage. It workd really well in most applications and this is something my clients have seen such as when they reboot their windows PC's.

When data is not in the cache it's pretty much just a 7200RPM laptop drive. Pretty quick, but not like a SSD. The 750GB has twice the flash cache of the smaller versions and appears to me to have better caching firmware. The firmware detects what's read frequently and tends to keep those parts of the hard drive data in the fast flash memory. The result is apparent after a few restarts and hours of use. Frequent tasks or programs - rebooting, word, outlook, etc. tend to start more quickly. If usage patterns change the drive cache catches up.

Because of it's innovative caching design this drive provides an excellent price-performance value point. Especially with large amounts of data. If you only need a small (128GB) hard drive, spring a little more for a pure SSD. If you want to have a lot of space, this is the drive.

Update: February 2013 the particular drive I reviewed here just died.
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Verified Purchase
This is noticeably faster than the 500GB version. I really wanted 1TB, but 750GB will do for now. I have it in a MBP 15" with a second 1TB hard drive in my optical bay.

Seagate had some problems with their 500GB hybrids, but seemed to get the issues worked out with new firmware (I never had a problem with mine). I haven't experienced any issues with the new 750GB either, but it will take time before I can comment on the reliability long term. I check my drives weekly for data corruption, and so far have found none, nor has there been stalling or other issues.

Did I mention this drive was fast?
14 Comments 167 of 184 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Verified Purchase
Purchased this recently for a early 2011 MBP 17"-2.2GHZ 16 GB ram, Lion & Snow Leopard & data partitions (3 in all-in same order of creation) The drive replaces a Samsung 1TB 5400rpm drive- which had replaced the stock Toshiba/Apple 750 GB 5400 rpm drive. Formatting & copying the previous partitions on the Samsung to the new Seagate was done via SeriTek 6G expresscard while Seagate was still external. Installed after copying w/o event, booted fine. Apple system profiler show the Seagate drive connecting at the 6G speed- no issue's, not like the well reported 6G SSD connection trouble with early 2011 17" & some 15" MacBook Pro's. My 17" BTW was built in April 2011 & reports 6G in HD bay as well as in optical bay.

The new Seagate is very quiet while copying outside the MBP. Not much info on outside of its case other than Seagate name/size of drive, manufacture date-11/2011, part/model/serial numbers, firmware-SM12 and rated @5V .70 amps. And made in CHINA (Amperage draw is lower than the Samsung 1 TB which is .85 amps & Toshiba/Apple 750 GB rated at 1.0 Amps. both of which are only 5400 rpm drives)Does not state speed, flash memory, or cache size, or SATA interface speed- which are 7200rpm, 8GB flash memory, 32MB cache & SATA III or otherwise known as 6G. Seagate did a pretty good job with current draw on drive compared to other laptop drives- inc. Samsung & Toshiba/Apple stock drive.

I don't know how they are cramming all this stuff into a 2.5" form factor- but the Seagate weighs more than any of the 2.5" drives that I have here. The Seagate comes in at 3 7/8 oz.- somewhat heavier than the other 2.5" drives(I have).
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