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Mercury Electra 3G SSD

High-performance 3Gb/s optimized for desktop, tower, and laptop use.
3 Year Warranty | Mac & PC
  • Exceptional, High-Performance
    Up to 285MB/s data rate. Optimized for maximum SATA 3Gb/s performance.
  • Ultra-efficient Block Management & Wear Leveling
    Prevents write speed degradation commonly experienced by other brands' SSD.
  • EXTREME Power Efficiency
    Uses up to 75% less power than hard drives and up to 50% less power than current SSDs* when active.
OWC Mercury Electra 3G SSD
2.0TB OWC Mercury Electra 6G SSD
operates at 3G speeds with 3G-capable machines Learn More
Have a 2011 MacBook Pro, iMac, Mac mini, or a PC with SATA Revision 3.0?
Get faster speeds with OWC Mercury Electra 6G SSDs! From $20.99

Manufacturer Certified, Professionally Trusted.

Mercury Electra 3G is certified by the leading manufacturers across the audio, video and design industries for use in pro-grade equipment when performance and reliability are critical.
Boot Faster - Launch Faster - Work Faster

4K Random Read/Write Data Rates
4K Random Read/Write Data Rates
OWC Mercury Electra 3G SSD

Photoshop Action Tests

Separate action tests, designed to push each system's capabilities

  • Mac Pro
  • Mac Pro
  • Mac Pro
  • One of the fastest Internal SATA 2.5" SSD with available data rates up to 285MB/s.
  • SandForce DuraClass™ technology with Ultra-efficient Block Management & Wear Leveling offers highest endurance, performance, and power efficiency in a SATA SSD.
  • SandForce® Processor maximizes read and write performance to greatly extend the endurance and overall reliability of the drive.
  • Up to 100X greater data protection than what the highest rated enterprise class conventional hard disk drive (HDD) provides.
  • Best in class error correction (ECC) and SandForce RAISE™ (Redundant Array of Independent Silicon Elements) technology provides RAID like data protection and reliability without loss of transfer speed due to parity.
  • Intelligent "recycling" for advanced free space management
  • Highly secure… all data automatically stored in AES-128 encrypted format.
30-Day Money Back Guarantee
OWC SSD vs. Factory HD Shootout
OWC SSD vs. Factory HD Shootout
Watch a side-by-side shootout
between and OWC SSD and Standard HDD in a MacBook Pro
loading Adobe's Creative Suite on startup.
Over provisioning & wear management explained
Some of the drive space in OWC SSDs are allocated for RAISE — which provides real time data redundancy, ECC Error Correction, and reserve cell space.

Example: An OWC Pro SSD that's 240GB in size with 7% over-provisioning is actually a 256GB drive with 7% allocated for data management, and to maintain the drive's high-performance level.

Unlike most SSDs on the market today, the Mercury Pro family uses advanced DuraWrite™ wear-leveling and block management technologies to keep Read/Write performance at peak while others see performance fall.
Over provisioning & wear management explained
  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.
  4. Specifications provided by SandForce.
Mercury Electra and Mercury Extreme are trademarks of New Concepts Development Corporation, registered in the U.S. Patent and Trademark Office. Apple, iMac, Mac, MacBook Pro, and Mac Pro are trademarks of Apple Inc., registered in the U.S. and other countries. SandForce DuraClass, SandForce, SandForce RAISE, and DuraWrite are trademarks of LSI Corporation in the U.S. and/or other countries. Other marks may be the trademark or registered trademark property of their owners.