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  • SDSSDX-120G-G25 SanDisk Extreme SSD 120GB SATA 6.0 Gb-s2.5-Inch Solid State Drive (SSD)
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SDSSDX-120G-G25 SanDisk Extreme SSD 120GB SATA 6.0 Gb-s2.5-Inch Solid State Drive (SSD)

by SanDisk
985 customer reviews
| 10 answered questions

Available from these sellers.
120 GB
  • Noise reduction for quiet drive operation
  • Low power consumption for cooler operation and extended battery life
  • Delivers reliability, durability, and high-performance for your laptop or PC
  • Designed to withstand shocks and vibration for high durability
  • 3 year limited warranty
3 new from $159.99 3 used from $89.00

Technical Details

Size: 120 GB
  • RAM: 120 GB
  • Hard Drive: 120 GB
  See more technical details

Product Description

Size:120 GB

Product Description

Upgrade your laptop for better performance and extend its reliability by replacing your hard disk drive with the SanDisk Extreme SSD. You'll enjoy faster boot-ups and open files compared to a 7200 RPM hard drive. The SanDisk Extreme SSD is backed by rigorous shock and vibration testing and a 3-year limited warranty. The SanDisk SSD features no moving parts, quiet operation, and low power consumption as compared to a 7200 RPM hard drive.

From the Manufacturer

Give your laptop or PC a high-speed boost with the reliable SanDisk Extreme Solid State Drive (120 GB*). This drive is an ideal choice for gamers, video editors, and other users of graphic-heavy applications. Because the drive has no moving parts, it runs silently. It's also rugged, engineered to endure shocks and vibration for durability of the drive. The SanDisk Extreme SSD is a cost-effective way to upgrade your existing computer, and it consumes less power than a 7,200 RPM hard drive** to extend your laptop battery's life.

* 1 gigabyte (GB*) = 1 billion bytes. 1 terabyte (TB) = 1 trillion bytes. Some capacity not available for data storage.

callout top with logo
Extreme Solid State Drive
(120 GB*)
At a Glance:
  • Cost-effective upgrade solution for PC/laptop
  • Fast read/write speeds ideal for gaming
  • Quick boot-up/shutdown
  • Resists shocks and vibration
  • Uses less power than standard hard drives**
  • No moving parts for quiet, cool operation
  • Three-year limited warranty†
SanDisk Extreme SSD (120 GB) Product Shot

The SanDisk Extreme Solid State Drive provides an easy, DIY upgrade to your PC or laptop. View larger.

SanDisk Extreme SSD (120 GB) Product Shot

An ideal choice for gamers, video editors, and other users of graphic-heavy applications. View larger.

StorageReview.com Award Winner

Chosen as an Editor's Choice by StorageReview.com.

Fast Load Times Ideal for Gaming

From boot-up to shutdown, the SanDisk Extreme SSD improves the user experience with fast read and write speeds. You will experience less lag time with graphics-intensive applications, as well as quiet, cool operation overall.

The SanDisk Extreme SSD offers sequential read speeds of up to 550 MB/s and sequential write speeds of up to 510 MB/s¹.

Upgrade Your PC for Extreme Performance

The SanDisk Extreme Solid State Drive offers an ideal DIY upgrade solution for PC/laptop users. Simply replace your existing hard drive with the SanDisk Extreme SSD for fast load times.

The SanDisk Extreme Solid State Drive is also available in 240 GB and 480 GB capacities.

No Moving Parts for Reliable Operation

Built with no moving parts, the rugged SanDisk Extreme SSD is both shock and vibration resistant. It is rated at 2.5 million hours mean time before failure♦ (MTBF), which means you can depend on it as a long-term upgrade solution.

Affordable and Energy Efficient

By replacing your existing hard drive with the SanDisk Extreme SSD, you can defer laptop/PC replacement or repair costs. The drive consumes less power than a 7,200 RPM hard drive** so your laptop battery lasts longer.

Compatibility and Warranty Information

The SATA 6 Gb/s SanDisk Extreme SSD is backward compatible with SATA 3 Gb/s and SATA 1.5 Gb/s. It measures 0.39 by 3.96 by 2.78 inches (H x W x D) and works with any computer that has a 2.5-inch hard drive.

The SanDisk Extreme Solid State Drive is backed by a three-year limited warranty†.

About SanDisk

SanDisk Corporation is a Silicon Valley-based S&P 500 and Fortune 500 company. It is a global leader in flash memory cards--from research, manufacturing, and product design to consumer branding and retail distribution. SanDisk holds more than 1,700 US patents and more than 1,100 foreign patents.

What's in the Box

SanDisk Extreme Solid State Drive (120 GB*)

SanDisk Extreme SSD (480 GB) Product Shot

¹ Based on SanDisk internal testing of sequential read and write speeds; performance may vary depending upon host device, OS, and application. 1 megabyte (MB) = 1 million bytes.
♦ Based on SanDisk internal testing using Telcordia stress part testing.
** As compared to 7,200 RPM SATA 2.5-inch hard drive. Based on published specifications and SanDisk internal benchmarking tests.
† Three-year warranty in regions not recognizing limited warranty.

SanDisk Extreme SSD120 GB*240 GB*480 GB*
PerformanceSeq. Read (up to)550 MB/s550 MB/s540 MB/s
Seq. Write (up to)510 MB/s520 MB/s460 MB/s
Rnd. Read (up to)23K IOPS39K IOPS44K IOPS
Rnd. Write (up to)83K IOPS83K IOPS46K IOPS
MTBFTelcordia, Stress Part2.5M hours2.0M hours1.4M hours

* 1 gigabyte (GB*) = 1 billion bytes. 1 terabyte (TB) = 1 trillion bytes. Some capacity not available for data storage.
i Test Platform: Dell Optiplex 990, RAM 4GB, Microsoft Windows 7 Ultimate 64-bit, Processor: Intel® Core™ i7-2600 CPU @ 3.40GHz, Intel driver: 10.1.0.1008.
Based on SanDisk internal testing of sequential read and write speeds; performance may vary depending upon host device, OS and application. 1 megabyte (MB) = 1 million bytes
ii ATTO Disk Benchmark, Average length 512MB data transfer, QD=10
iii IOMETER 2008 benchmark, LBA range 8GB
Based on SanDisk internal testing using Telcordia stress part testing.
As compared to 7200 RPM SATA 2.5" hard drive. Based on published specifications and sanDisk internal benchmarking tests.
3 year warranty in regions not recognizing limited warranty.


Product Details

Size: 120 GB
  • Product Dimensions: 2.8 x 4 x 0.4 inches ; 2.9 ounces
  • Shipping Weight: 4 ounces
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B006EKJCWM
  • Item model number: SDSSDX-120G-G25
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (985 customer reviews)
  • Amazon Best Sellers Rank:
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at Amazon.com: December 8, 2011

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

612 of 679 people found the following review helpful By D. McLean on July 18, 2012
Size: 240 GB
Dear Amazon,

This review was written for Sandisk Extreme, not Sandisk Extreme II. It has nothing to say about the newer model. Your editors have erred in conflating the reviews for these two different products.

Readers please note that Sandisk has, after many months, corrected the problems cited in this review, so those complaints are now irrelevant. However, my comments on the corporation's lack of integrity and honesty still stand.
-----------------------------------------------------------------------------------------

This is probably the fastest and most reliable SSD in its price class...except for it failing to deliver its rated speed due to defective firmware.

The problem occurs with MacBooks and desktop models that use the NVidia SATA controller. (You can see the controller under System Profiler->Serial-ATA.) The Sandisk Extreme will connect at a negotiated link speed half that of the controller. That means for a SATA 2 (3 Gbps) controller, transfer speeds will be limited to about 120 MB/s, a quarter of the SSD's rated speed. SATA 3 (6 Gbps) will be limited to about 250 MB/s in practice.

This problem of reduced link speed has appeared extensively with various combinations of SSD brands and Mac models. Both OWC and OCZ have already issued firmware updates that correct the problem, giving their customers the full speed capacity of their SSDs. As of the writing, Sandisk has not corrected the problem, nor committed to doing so.

If you are thinking of installing any SSD in a Mac, I suggest you first search for "negotiated link speed" <your mac model> <ssd model> to find out whether your particular combination will suffer this defect.
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80 of 92 people found the following review helpful By Kent on April 16, 2012
Size: 120 GB Verified Purchase
My system basics:
Windows 7, 64bit
Dell Vostro 3550 about 6 months old.
Intel Core I5 (quad) 2.3ghz with turbo.
8GB dram
Sata 3 drive controller
Crucial M4 128GB SSD, Read 500MB/sec, write speed 200MB/sec (was originally WD 7200rpm 320GB)
My qualifications: Electronic Engineer/Project manager. PC owner for 25+ years.

Opening comments: I have owned pc's for 25years. THIS IS ABSOLUTELY THE BEST BANG FOR THE BUCK UPGRADE YOU COULD EVER HOPE TO BUY!!!! IT IS EVEN BETTER THAN REPLACING A 2YR OLD COMPUTER OR LAPTOP AND OF COURSE CHEAPER!! Other benefits: windows is more stable. If you have a lot of programs open at the same time, the computer remains stable all day. Now, I rarely need to reboot.

I bought a Crucial M4 SSD (solid state drive) about a 2 month's ago and was amazed at the speed. Can't go back to mechanical hard-drives. I bought this one because it was spec'd faster than the M4 and I needed a back-up drive. This technology does not have a reliability track record for long term use as a computer drive. Once a week, I create clone drive copy as a back up. If the drive fails this clone can be popped in my laptop and I'm ready to go in 10 minutes. No restore needed except the few files I have added or changed.

Summary 1st: Both drives are excellent choices. (Sandisk Extreme and Crucial M4)
On my laptop, in every day use Sandisk extreme is slightly faster.

See posted photo's for actual data.
a)According to "ASS SD" benchmark test. Crucial is much faster than this drive (Sandisk Extreme.)
b)According to "Benchmark" speed test: Sandisk Extreme is faster. SanDisk write speed blows away the Crucial M4.

Note: Electrical specs like statistics can be presented in a way that is deceptive.
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74 of 92 people found the following review helpful By Darren T on April 4, 2012
Size: 120 GB Verified Purchase
I'll start by saying I'm not a techie, but I do my research and I understand computers fairly well, so understand that this review is coming from the perspective of an educated layman with just his personal experience (and what he's read elsewhere) to go off.

And, before I start, let me give you my hardware specs first, just so you know: HP HDX18T laptop, Intel Core 2 Duo T9550 @ 2.66 GHz, 1080p HD res, 4gb ram (2 x 2DIMM), nvidia 130M card (does the job, but it's my weakest link now, for sure!). Used to be a top-of-the-line system, but it's about 3.5 yrs old now, and I haven't really babied it at all, so the parts definitely have normal wear and tear.

Now, onto the review --

Performance: This SSD simply FLIES. My "disk data transfer" Windows Experience Score was 5.5 out of 7.9 before the upgrade (with a WD2500BEKT 250 gb hdd @ 7200 rpm). After installing the Sandisk Extreme 120 gb SSD, my score shot up to 7.7 out of 7.9!! That is a ridiculous improvement, and the real-life difference, it turns out, is EXTREMEly noticeable (see what I did there?). I didn't precisely time the boot, shutdown, and application launch times before the upgrade, but with this drive, the boot and shutdown times are about halved, and the application launch time is basically instantaneous. Also, my computer is super quiet now very low fan speed, and almost no heat is being generated.

Price: I scooped this up for a mere $129.99 on one of amazon's one-day price drops (for the past few weeks, it's varied between $139-$149, so this was a nice deal). In fact, if you compare the cost of this SSD ($/Gb) to others, you'll see this drive is far and away the best deal out there.
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