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750GB Momentus XT Solid State Hybrid Hard Disk Drive

2.5-Inch | SATA 6.0Gb/s | 7200RPM | 32MB Cache
FAST. Intelligent. Affordable.
Testing demonstrates that Momentus® XT solid state hybrid drives perform like solid state drives on common computing tasks—without sacrificing capacity.

Featuring Adaptive Memory technology, a self-learning algorithm that delivers SSD-like response from your most frequently used applications and files.

By selectively tackling data that is frequently used and time-consuming to fetch, the Momentus XT drive will copy this data into the flash and maintain the relevancy. You get the instant response experience you've been searching for.

FAST Factor technology eliminates the need for multiple drives in a system by combining the best of both worlds in one drive. FAST Factor features include innovative data control techniques and Adaptive Memory™ technology to customize performance by aligning to user needs.

Momentus XT solid state hybrid drives are designed to work in any standard laptop or PC. Driver, OS, and software-independent, the Momentus XT drive is remarkably simple to integrate and easy to use.

750GB Seagate Momentus XT Hybrid Specifications:


Form Factor
2.5″ HDD
SATA 6Gb/s
Formatted Capacity2
Rotational Speed
7,200 RPM
Cache / Data Buffer
Manufacturer Model Number


Height (max)
9.50mm (0.374 in)
Width (max)
70.10mm (2.76″)
Length (max)
100.55mm (3.959″)
Weight (typical)
115g (.253 lb)
Guaranteed Sectors


Nonrecoverable Read Errors
1 per 1014 bits read
3 Year Seagate Warranty


Transfer Rate (Max)
Average Seek Time
Average Latency


Maximum Start Current, DC
1.2 Amp
Seek Power
2.4 Watts
Read Power
1.2 Watts
Write Power
1.2 Watts
Idle Mode
0.8 Watts

Environmental (Operating)

350 Gs for 2ms
Ambient Temperature (°F)
32°F to 140°F
Ambient Temperature (°C)
0°C to 60°C
-304.8 m to 3,048 m (-1,000 ft to 10,000+ ft)

Environmental (Non-Operating)

1000 Gs for 1ms
Ambient Temperature (°F)
-40°F to 158°F
Ambient Temperature (°C)
-40°C to 70°C
-304.8 m to 12,192 m (-1000 ft to 40,000+ ft)


Idle (Typical)
2.3 bels
Seek (Typical)
2.6 bels
  1. 1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings/preferences.
  2. In terms of standard gigabytes, 1GiB ≈ 1.074GB and refers to the actual formatted capacity of shown under Mac OS 10.5 or earlier and Microsoft Windows OS.
  3. Specific application environments such as temperature and duty cycle will affect the overall reliability rates.
Manufacturer provided specifications for Seagate p/n ST750LX003

Customer Ratings

Write a Review 5 / 5 6 out of 6 (100%) reviewers would recommend this product
Verified Buyer
Reviewer: Anonymous Location: NJ Age: 35-44 Experience Level: Power User Owned Product: 3-4 months
Rating: 5/5 Perfect July 4, 2013 As much as I like this product, I love OWC even more! Whatever it is that I need in my tech world, OWC is there with great products, great prices and AMAZING service.

This 750GB Hybrid drive is awesome. No it's not a full on SSD, but the speed you get out of this drive is awesome.

Highly recommend for anyone with a current MBP.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Alabama Age: 35-44 Experience Level: IT Professional Owned Product: 5-6 months
Rating: 5/5 Drive works great!!! May 22, 2013 I have been using the drive for 6 months now, and no issues. Applications launch faster. A great alternative to SSDs until the price of SSDs come down.

I would recommend this item to a friend!

Reviewer: pbearme Location: Maine Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Like night and day September 23, 2012 Swapped out a regular 1 TB 7200 rpm drive for this in a 2 1/2 yr old mb pro. The result was amazing - much faster boot and much faster applications - really worth the money - like having a new computer. I have had good luck with Seagate drives, so this should hold up well.

I would recommend this item to a friend!

Verified Buyer
Reviewer: BoogerDoc Location: Ada, OK Age: 35-44 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Great September 20, 2012 Macsales makes it very easy to excise what you need for your Mac. I have used it many time on diffrent items and have been happy every time. I have recommended it to several people wanting to upgrade their Mac

I would recommend this item to a friend!

Verified Buyer
Reviewer: Tsugacanadensis Location: Canada Age: 55-65 Experience Level: Power User Owned Product: 5-6 months
Rating: 5/5 Magic difference for my MacBook Pro April 29, 2012 Adding this drive to my MB Pro has made a remarkable difference - I didn't realize this until I compared it to another MB Pro using a standard drive.

I have used it lots for 6 months with no problems. The 5-year warranty on mine is very reassuring. Now I am getting another one for that other deprived MB Pro.

I would recommend this item to a friend!

Reviewer: Walt Location: New Mexico Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 I am so pleased April 6, 2012 I used this Seagate Momentus XT 750 GB solid state hybrid drive to replace the existing 250 GB drive in my 15", mid-2009 MacBook Pro--and I couldn't be happier with how it all came out.

I was looking for increased capacity, which I obviously got, but was leery that I'd notice any real performance boost due to the solid state hybrid feature of this Momentus. I was quite surprised, and very pleased, therefore, to see a dramatic increase in opening my programs. I was also quite pleased that the Momentus is quieter than the old drive it replaced.

The installation was very simple, not a glitch one. I made a clone of my existing drive (using Carbon Copy Cloner and Newer Technologies USB Universal Drive Adapter), which took exactly 4-hours and 20-minutes to transfer over 200 GB of data. The clone worked absolutely perfect as when I booted after installing the new Momentus, all my data showed up and I was able to access my programs just as I had with the old drive--except opening them was so much quicker!

I'd recommend this Momentus hybrid drive to anyone considering it.

I would recommend this item to a friend!

Seagate 750GB Momentus XT Mfr P/N: ST750LX003 OWC SKU: SEAST750LX003 Internal 2.5" Hard Drive Seagate 2 Year Limited Warranty
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