240GB OWC Mercury Electra 3G

We're sorry, but this item is no longer for sale. However, there may be more Internal Hard Drives & SSDs items available.

We recommend 240GB Mercury Electra 3G 2.5-inch 7mm SATA 3.0Gb/s Solid-State Drive (Mfr P/N: SSD7E3G240) from OWC for $128.75 as a suitable alternative.

240GB OWC Mercury Electra 3G

2.5-inch 9.5mm SATA 3.0Gb/s Solid-State Drive


Mfr P/N: OWCSSDEX3G240 OWC SKU: OWCSSDEX3G240

For High Speed Personal Computing, Home/Office, Gaming, and Personal Photography. 3 Year OWC SSD Limited Warranty

  • One of the fastest Internal SATA 2.5? SSDs available...and Built in the USA!
  • Ultra-efficient Block Management & Wear Leveling for unparalleled reliability & performance.
  • 3 Year OWC Limited Warranty
availability

Additional Capacities

120GB
arrow up 120GB $24.99$19.99 in stockIn Stock: Ships Same Day!
250GB
arrow up 250GB $34.99$25.79 in stockIn Stock: Ships Same Day!
500GB
arrow up 500GB $54.99$39.88 in stockIn Stock: Ships Same Day!
1.0TB
arrow up 1.0TB $98.99$74.99 in stockIn Stock: Ships Same Day!
2.0TB
arrow up 2.0TB $179.99$129.99 in stockIn Stock: Ships Same Day!
This internal 2.5" SATA SSD delivers the highest transfer speed, endurance, and performance available today.
With sustained reads up to 285MB/s and writes up to 275MB/s, up to 100X greater data protection than enterprise class Hard Disk Drives, and RAISE technology for RAID like data protection and reliability, the OWC 240GB Mercury Electra 3G SSD line delivers unbeatable performance. It's also designed and built in the U.S. from domestic and imported parts. Replace your conventional hard drive with a reliable solid state drive. Unlike traditional hard disk drives, OWC SSDs have no moving parts, resulting in a quiet, cool, and highly rugged storage solution that also offers near instantaneous system response.

IncludesIncludes

Back to top
  • (1) OWC Mercury Electra 3G Solid-State Drive
  • 3 Year OWC Limited Warranty

    Capacity

    • 256 GB

    Formatted Capacity

    • 238GiB

    Format

    Controller

    • SandForce 2181 Series Processor

    NAND Flash Components

    • Tier 1 Asynchronous Multi-Level Cell (MLC) NAND Flash

    S.M.A.R.T. Attributes

    • Standard attributes supported

    Native Command Queuing (NCQ)

    • Up to 32 simultaneous commands

    RAID Support

    • Yes

    Form Factor

    • 2.5-inch 7mm

    Storage Interface

    • SATA 3.0 Gb/s

    Random 4K Read

    • Up to 60,000 IOPS

    Random 4K Write

    • Up to 60,000 IOPS

    Sustained Read (3Gb/s)

    • Up to 285 MB/s

    Sustained Write (3Gb/s)

    • Up to 275 MB/s

    Read Latency (Max)

    • 100 µs

    Write Latency (Max)

    • 100 µs

    Read Incompressible Data Rate (up to)

    • 208 MB/s

    Write Incompressible Data Rate (up to)

    • 235 MB/s

    Nonrecoverable Read Errors

    • 1 per 1016 bits read

    TRIM Support

    • OS Dependent

    Error Correction

    • Built-in ECC

    Security

    • Chip Based Data Encryption: 128-bit AES-compliant

    Dimensions

    • Height: 0.7 cm (0.3 in)
    • Length: 10.0 cm (3.9 in)
    • Width: 7.0 cm (2.8 in)

    Weight

    • 77.0 g (0.17 lbs)

    RoHS Compliant

    • Yes

    Reach Certification

    • Yes

    Ambient Temperature

    • Operating: 32°F to 158°F (0°C to 70°C)
    • Non-Operating: -67°F to 302°F (-55°C to 150°C)

    Altitude

    • Operating: -304.8 m to 3,048.0 m (-1,000 ft to 10,000 ft)
    • Non-Operating: -304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)

    Idle (Typical)

    • 0.0 bels

    Seek (Typical)

    • 0.0 bels

    Compatibility & Installation VideosCompatibility & Installation Videos

    Back to top
    MacBook Pro (13-inch, Mid 2012)
    MacBook Pro (13-inch, Mid 2012)
    Mid 2012
    Model ID: MacBookPro9,2
    2.5GHz Core i5 & 2.9GHz Core i7
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Mid 2012)
    MacBook Pro (15-inch, Mid 2012)
    Mid 2012
    Model ID: MacBookPro9,1
    2.3GHz & 2.6GHz & 2.7GHz Core i7
    Detailed SpecsInstall Videos
    MacBook Pro (17-inch, Late 2011)
    MacBook Pro (17-inch, Late 2011)
    Late 2011
    Model ID: MacBookPro8,3
    2.4GHz & 2.5GHz Core i7
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Late 2011)
    MacBook Pro (15-inch, Late 2011)
    Late 2011
    Model ID: MacBookPro8,2
    2.2GHz & 2.4GHz & 2.5GHz Core i7
    Detailed SpecsInstall Videos
    MacBook Pro (13-inch, Late 2011)
    MacBook Pro (13-inch, Late 2011)
    Late 2011
    Model ID: MacBookPro8,1
    2.4GHz Core i5 & 2.8GHz Core i7
    Detailed SpecsInstall Videos
    MacBook Pro (17-inch, Early 2011)
    MacBook Pro (17-inch, Early 2011)
    Early 2011
    Model ID: MacBookPro8,3
    2.2GHz & 2.3GHz Core i7
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Early 2011)
    MacBook Pro (15-inch, Early 2011)
    Early 2011
    Model ID: MacBookPro8,2
    2.0GHz & 2.2GHz & 2.3GHz Core i7
    Detailed SpecsInstall Videos
    MacBook Pro (13-inch, Early 2011)
    MacBook Pro (13-inch, Early 2011)
    Early 2011
    Model ID: MacBookPro8,1
    2.3GHz Core i5 & 2.7GHz Core i7
    Detailed SpecsInstall Videos
    MacBook Pro (13-inch, Mid 2010)
    MacBook Pro (13-inch, Mid 2010)
    Mid 2010
    Model ID: MacBookPro7,1
    2.4GHz & 2.7GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Mid 2010)
    MacBook Pro (15-inch, Mid 2010)
    Mid 2010
    Model ID: MacBookPro6,2
    2.4GHz & 2.5GHz Core i5 & 2.7GHz & 2.8GHz Core i7
    Detailed SpecsInstall Videos
    MacBook Pro (17-inch, Mid 2010)
    MacBook Pro (17-inch, Mid 2010)
    Mid 2010
    Model ID: MacBookPro6,1
    2.5GHz Core i5 & 2.7GHz & 2.8GHz Core i7
    Detailed SpecsInstall Videos
    MacBook Pro (13-inch, Mid 2009)
    MacBook Pro (13-inch, Mid 2009)
    Mid 2009
    Model ID: MacBookPro5,5
    2.3GHz & 2.5GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Mid 2009)
    MacBook Pro (15-inch, Mid 2009)
    Mid 2009
    Model ID: MacBookPro5,4 & MacBookPro5,3
    2.5GHz & 2.7GHz & 2.8GHz & 3.1GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (17-inch, Mid 2009)
    MacBook Pro (17-inch, Mid 2009)
    Mid 2009
    Model ID: MacBookPro5,2
    2.8GHz & 3.1GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (17-inch, Early 2009)
    MacBook Pro (17-inch, Early 2009)
    Early 2009
    Model ID: MacBookPro5,2
    2.7GHz & 2.9GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Early 2009)
    MacBook Pro (15-inch, Early 2009)
    Early 2009
    Model ID: MacBookPro5,1
    2.7GHz & 2.9GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Late 2008)
    MacBook Pro (15-inch, Late 2008)
    Late 2008
    Model ID: MacBookPro5,1
    2.4GHz & 2.5GHz & 2.8GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Early 2008)
    MacBook Pro (15-inch, Early 2008)
    Early 2008
    Model ID: MacBookPro4,1
    2.4GHz & 2.5GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (17-inch, Early 2008)
    MacBook Pro (17-inch, Early 2008)
    Early 2008
    Model ID: MacBookPro4,1
    2.5GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Early 2008)
    MacBook Pro (15-inch, Early 2008)
    Early 2008
    Model ID: MacBookPro4,1
    2.6GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (17-inch, Early 2008)
    MacBook Pro (17-inch, Early 2008)
    Early 2008
    Model ID: MacBookPro4,1
    2.6GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Late 2007)
    MacBook Pro (15-inch, Late 2007)
    Late 2007
    Model ID: MacBookPro3,1
    2.6GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (17-inch, Late 2007)
    MacBook Pro (17-inch, Late 2007)
    Late 2007
    Model ID: MacBookPro3,1
    2.6GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Mid 2007)
    MacBook Pro (15-inch, Mid 2007)
    Mid 2007
    Model ID: MacBookPro3,1
    2.2GHz & 2.4GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (17-inch, Mid 2007)
    MacBook Pro (17-inch, Mid 2007)
    Mid 2007
    Model ID: MacBookPro3,1
    2.4GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Late 2006)
    MacBook Pro (15-inch, Late 2006)
    Late 2006
    Model ID: MacBookPro2,2
    2.2GHz & 2.3GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (17-inch, Late 2006)
    MacBook Pro (17-inch, Late 2006)
    Late 2006
    Model ID: MacBookPro2,1
    2.3GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook Pro (17-inch, Early 2006)
    MacBook Pro (17-inch, Early 2006)
    Early 2006
    Model ID: MacBookPro1,2
    2.2GHz Core Duo
    Detailed SpecsInstall Videos
    MacBook Pro (15-inch, Early 2006)
    MacBook Pro (15-inch, Early 2006)
    Early 2006
    Model ID: MacBookPro1,1
    1.8GHz Core Duo & 2.0GHz Core Duo & 2.2GHz Core Duo
    Detailed SpecsInstall Videos
    MacBook (13-inch, Mid 2010)
    MacBook (13-inch, Mid 2010)
    Mid 2010
    Model ID: MacBook7,1
    2.4GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook (13-inch, Late 2009)
    MacBook (13-inch, Late 2009)
    Late 2009
    Model ID: MacBook6,1
    2.3GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook (13-inch, Mid 2009)
    MacBook (13-inch, Mid 2009)
    Mid 2009
    Model ID: MacBook5,2
    2.1GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook (13-inch, Early 2009)
    MacBook (13-inch, Early 2009)
    Early 2009
    Model ID: MacBook5,2
    2.0GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook (13-inch, Late 2008)
    MacBook (13-inch, Late 2008)
    Late 2008
    Model ID: MacBook5,1
    2.0GHz & 2.4GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook (13-inch, Early 2008)
    MacBook (13-inch, Early 2008)
    Early 2008
    Model ID: MacBook4,1
    2.1GHz & 2.4GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook (13-inch, Late 2007)
    MacBook (13-inch, Late 2007)
    Late 2007
    Model ID: MacBook3,1
    2.0GHz & 2.2GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook (13-inch, Mid 2007)
    MacBook (13-inch, Mid 2007)
    Mid 2007
    Model ID: MacBook2,1
    2.0GHz & 2.2GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook (13-inch, Late 2006)
    MacBook (13-inch, Late 2006)
    Late 2006
    Model ID: MacBook2,1
    1.8GHz & 2.0GHz Core 2 Duo
    Detailed SpecsInstall Videos
    MacBook (13-inch, Mid 2006)
    MacBook (13-inch, Mid 2006)
    Mid 2006
    Model ID: MacBook1,1
    1.8GHz Core Duo & 2.0GHz Core Duo
    Detailed SpecsInstall Videos
    Mac Pro (Mid 2012)
    Mac Pro (Mid 2012)
    Mid 2012
    Model ID: MacPro5,1
    3.2GHz 4-Core Xeon & 3.3GHz 6-Core Xeon & 2.4GHz & 2.7GHz & 3.1GHz 12-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Mid 2010)
    Mac Pro (Mid 2010)
    Mid 2010
    Model ID: MacPro5,1
    2.8GHz & 3.2GHz 4-Core Xeon & 3.3GHz 6-Core Xeon & 2.4GHz 8-Core Xeon & 2.7GHz & 2.9GHz 12-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Early 2009)
    Mac Pro (Early 2009)
    Early 2009
    Model ID: MacPro4,1
    2.7GHz & 2.9GHz & 3.3GHz 4-Core Xeon & 2.3GHz & 2.7GHz & 2.9GHz 8-Core Xeon
    Install Videos
    Mac Pro (Early 2008)
    Mac Pro (Early 2008)
    Early 2008
    Model ID: MacPro3,1
    2.8GHz & 3.0GHz & 3.2GHz 8-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Early 2007)
    Mac Pro (Early 2007)
    Early 2007
    Model ID: MacPro2,1
    3.0GHz 8-Core Xeon
    Detailed SpecsInstall Videos
    Mac Pro (Mid 2006)
    Mac Pro (Mid 2006)
    Mid 2006
    Model ID: MacPro1,1
    2.0GHz & 2.7GHz & 3.0GHz 4-Core Xeon
    Detailed SpecsInstall Videos
    Mac mini (Late 2012)
    Mac mini (Late 2012)
    Late 2012
    Model ID: Macmini6,2
    2.3GHz Core i7
    Detailed SpecsInstall Videos
    Mac mini Server (Late 2012)
    Mac mini Server (Late 2012)
    Late 2012
    Model ID: Macmini6,2
    2.3GHz Core i7
    Detailed SpecsInstall Videos
    Mac mini (Late 2012)
    Mac mini (Late 2012)
    Late 2012
    Model ID: Macmini6,2
    2.6GHz Core i7
    Detailed SpecsInstall Videos
    Mac mini Server (Late 2012)
    Mac mini Server (Late 2012)
    Late 2012
    Model ID: Macmini6,2
    2.6GHz Core i7
    Detailed SpecsInstall Videos
    Mac mini (Late 2012)
    Mac mini (Late 2012)
    Late 2012
    Model ID: Macmini6,1
    2.5GHz Core i5
    Detailed SpecsInstall Videos
    Mac mini Server (Mid 2011)
    Mac mini Server (Mid 2011)
    Mid 2011
    Model ID: Macmini5,3
    2.0GHz Core i7
    Detailed SpecsInstall Videos
    Mac mini (Mid 2011)
    Mac mini (Mid 2011)
    Mid 2011
    Model ID: Macmini5,2 & Macmini5,1
    2.5GHz & 2.7GHz Core i7 & 2.3GHz Core i5
    Detailed SpecsInstall Videos
    Mac mini (Mid 2010)
    Mac mini (Mid 2010)
    Mid 2010
    Model ID: Macmini4,1
    2.4GHz & 2.7GHz Core 2 Duo
    Detailed SpecsInstall Videos
    Mac mini Server (Mid 2010)
    Mac mini Server (Mid 2010)
    Mid 2010
    Model ID: Macmini4,1
    2.7GHz Core 2 Duo
    Detailed SpecsInstall Videos
    Mac mini (Late 2009)
    Mac mini (Late 2009)
    Late 2009
    Model ID: Macmini3,1
    2.3GHz & 2.5GHz Core 2 Duo
    Detailed SpecsInstall Videos
    Mac mini Server (Late 2009)
    Mac mini Server (Late 2009)
    Late 2009
    Model ID: Macmini3,1
    2.5GHz Core 2 Duo
    Detailed SpecsInstall Videos
    Mac mini (Late 2009)
    Mac mini (Late 2009)
    Late 2009
    Model ID: Macmini3,1
    2.7GHz Core 2 Duo
    Detailed SpecsInstall Videos
    Mac mini (Early 2009)
    Mac mini (Early 2009)
    Early 2009
    Model ID: Macmini3,1
    2.0GHz & 2.3GHz Core 2 Duo
    Detailed SpecsInstall Videos
    Mac mini (Mid 2007)
    Mac mini (Mid 2007)
    Mid 2007
    Model ID: Macmini2,1
    1.8GHz & 2.0GHz Core 2 Duo
    Detailed SpecsInstall Videos
    Mac mini (Early 2006)
    Mac mini (Early 2006)
    Early 2006
    Model ID: Macmini1,1
    1.5GHz Core Solo & 1.7GHz Core Duo
    Detailed SpecsInstall Videos
    Xserve Xeon (Early 2009)
    Xserve Xeon (Early 2009)
    Early 2009
    Model ID: Xserve3,1
    2.3GHz Xeon E5520 & 2.7GHz Xeon X5550 & 2.9GHz Xeon X5570
    Detailed Specs
    4.93 out of 5

    351 out of 365 (96%) reviewers would recommend this product

    Write a Review
    2 star
    1 star
    93%
    6%
    0%
    0%
    0%

    good service and product as usual

    good service and product as usual

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    DistinctScorpion-90255, 
    • Reviewer:DistinctScorpion-90255
    Response from OWC, Support

    Thank you for your fantastic review! We’re thrilled to hear that you consistently receive great service and quality products from us. Your support means the world to us, and we can’t wait to serve you again! Please feel free to contact us if you have any further questions, comments, or concerns.  https://eshop.macsales.com/Service/


    Brought my computer alive again

    A decade ago, I replaced my HDD with a Crucial SSD. Hardly using the laptop as I felt the space sucked, using my newer ones, when I went in to upgrade the OsX recently, it failed. No excuses. I was afraid the laptop was dead and it wasn’t. All I needed to do was buy this drive and install it again with a bootable USB for Mac OSX. Thank you for making my laptop new again. This makes it so fast, you can’t tell it is an old computer, and I do own new computers so I’m not ancient and out of the loop. I can use everything I love. With more storage? 2TB rocks. Quickly installed some of my heavier work software on this and it works like a charm.

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    Rat With Cheese, 
    • Reviewer:Rat With Cheese
    Response from OWC, Support

    Wow, what an amazing review! We're absolutely thrilled to hear that our SSD brought your laptop back to life and gave it a new lease on speed and storage! It's fantastic that you were able to easily install it with a bootable USB for Mac OSX. With 2TB of space, it sounds like you're ready to dive back into all your favorite applications without a hitch. Thank you for trusting us to enhance your computing experience – we're so excited to be part of your tech journey!


    Great Upgrade!

    Upgraded a 2009 MacBook Pro running OS Catalina. The installation was super easy (15 minutes). My Mac now runs much faster and much cooler. 1 TB gives me TONS of storage and gives me over 750 GB of free space to keep many more important documents, photos, videos, and downloads. BTW, it was a great buy at a fantastic price. Once again, OWC MacSales is my "goto" computer place!

    I would recommend this product to a friend!

    Verified Purchase
    Verified PurchaseVerified Purchase.
    DKlaas, 
    • Reviewer:DKlaas
    Response from OWC, Support

    Wow! We're absolutely thrilled to hear about your fantastic upgrade experience with your 2009 MacBook Pro! ? It's amazing how a simple installation can breathe new life into a machine, and we're so glad to know that you're enjoying the speed and efficiency of your new setup, along with that impressive 1 TB of storage! Thank you for choosing OWC MacSales as your go-to place for all your computer needs — we truly appreciate your support and can't wait to help you with your future upgrades!


    View More Reviews