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Mercury Elite Pro Mini
500GB SSD Bus-Powered, Multi-Interface Storage Solution

Mac / PC / Chrome / USB 3.1 Gen 2 / Thunderbolt 3 Compatibility / eSATA
Your portable, plug-and-play powerhouse
Flexible connections. Quiet operation.
Perfect for a day in the studio, on-set and everywhere in between, the OWC Mercury Elite Pro mini with USB-C and Thunderbolt 3 compatibility is a powerhouse for data transfer and storage.

The Mercury Elite Pro mini with USB-C fits 2.5" Serial ATA (SATA) hard drive or Solid State Drives (SSD). The Mercury Elite Pro mini features a heat-dissipating, fanless design for cool, super-quiet operation.
Rocket power. Pocket size.
Made for fast-transfer and secure storage, it’s ideal for photo and video shoots, editing, motion graphics, audio, Time Machine backups, and all your other data needs. And in a lightweight, impact-resistant brushed aluminum enclosure, it easily goes where you go.

Product Specifications:

Standard Mechanism

    Release Candidate (RC) firmware set

    There are two kinds of firmware for SSDs Mass Production (MP) and Release Candidate (RC). Prior to an MP firmware release, there are beta firmware releases and an RC firmware release. Often, the RC is the same as the MP release, however there can be small changes and bug fixes made between the two. OWC has evaluated the RC for the 6Gb/s SandForce 2281 Processor and found it to be stable with no issues reported during our testing. However, as with any evolutionary product, issues may surface as different usages and configurations are employed and it is important to understand that there will be further updates and revisions.

    Since no firmware update is currently offered for the OWC Mercury EXTREME Pro 6G SSD, no update page exists. To see the typical steps involved with a self performed field firmware update, please visit our 3Gb/s product update page at: http://eshop.macsales.com/Customized_Pages/Framework.cfm?page=sf_firmware.html

    It is important to note that the current firmware update tool requires the use of Windows XP/Vista/7. OWC is currently working on a Mac OS based update tool, but we do not have an exact availability date.

    480GB Mercury Extreme Pro 6G SSD Specifications:


    Phison PS3112-S12 with 7% over-provisioning
    Synchronous Triple-Level Cell (TLC) 3D NAND Flash
    Form Factor
    2.5-inch 7mm
    SATA 6.0 Gb/s
    480GB useable capacity
    Total Flash Memory Components – 512GB
    32GB allocated to real-time data redundancy & error correction
    Formatted Capacity
    RAID Support
    SMART Attributes
    Standard attributes supported
    Native Command Queuing
    up to 32 commands
    Manufacturer Model Number
    RoHS Compliant


    Height (max)
    0.7 cm (0.3 in)
    OWC 7mm – 9.5mm Adapter
    1 included (buy additional)
    Width (max)
    7.0 cm (2.8 in)
    Length (max)
    10.0 cm (3.9 in)
    77.0 g (0.17 lbs)


    Data Reliability
    Built-in BCH ECC: Up to 66 bits correctable per 1024 bytes
    Nonrecoverable Read Errors
    Less than 1 sector per 1016 bits read


    Sequential Reads (Max)
    Up to 550 MB/s
    Sequential Writes (Max)
    Up to 530 MB/s
    Sequential 4K Read
    Up to 100,000 IOPS
    Sequential 4K Write
    Up to 90,000 IOPS


    Write: 2000mW (2.0W) Maximum draw

    Environmental (Operating)

    -304.8 m to 3,048.0 m (-1,000 ft to 10,000 ft)
    Temperature (°F)
    32°F to 158°F
    Temperature (°C)
    0°C to 70°C

    Environmental (Non-Operating)

    304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)
    Temperature (°F)
    -40°F to 185°F
    Temperature (°C)
    -40°C to 85°C


    Idle (Typical)
    0.0 bels
    Seek (Typical)
    0.0 bels
    • 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. 
    • 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.
  • 500GB OWC Mercury Extreme Pro 6G SSD**

  • *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.

    **OWC reserves the right to replace or upgrade to equivalent or better components.

Drive Interface

  • SATA 6.0Gb/s

Mac OS Compatibility

  • Mac OS X 10.6 Snow Leopard
  • Mac OS X 10.7 Lion
  • Mac OS X 10.8 Mountain Lion
  • OS X 10.9 Mavericks
  • OS X 10.10 Yosemite
  • OS X 10.11 El Capitan
  • macOS 10.12 Sierra
  • macOS 10.13 High Sierra
  • macOS 10.14 Mojave

PC OS Compatibility

  • Windows 7
  • Windows Home Server 2011
  • Windows 8
  • Windows 8.1
  • Windows Server 2012
  • Windows 10
  • Windows Server 2016


  • (1) USB 3.1 Gen 2 Bridge: ASMedia ASM235CM
  • (1) ASMedia ASM1456B


  • CE
  • FCC

Number of Bays

  • One

Data Transfer Rates

  • USB 3.1 gen 2: 10Gb/s (or 1250 MB/s)
  • eSATA: 600MB/s

Bus Powered

  • Yes, optional external power adapter


  • (1) USB 3.1 Gen 2 Port
  • (1) eSATA 6 GB/s Port

Housing Color

  • Silver

Housing Material

  • Aluminum


  • Idle (Typical): 2.2 bels
  • Seek (Typical): 2.3 bels


  • 600,000 hours

Ambient Temperature

  • Operating: 32°F to 104°F (0°C to 40°C)
  • Non-Operating: -4°F to 158°F (-20°C to 70°C)


  • Height: 2.5 cm (1.0 in)
  • Length: 14.0 cm (5.5 in)
  • Width: 9.8 cm (3.9 in)


  • 318.0 g (0.70 lbs)
Manufacturer provided specifications for Other World Computing p/n ME6CM6EP500 UPC#: 810586031639



  • OWC Mercury Elite Pro mini
  • USB 3.1 Gen 2 (Type-C to Type-C) cable
  • USB 3.1 Gen 1 (Type-C to Type-A) cable
  • eSATA cable
  • DC to USB Type-A connector
  • User Guide

Customer Ratings

Write a Review 4.5 / 5 2 out of 2 (100%) reviewers would recommend this product
Verified Buyer
Reviewer: rjtiedeman Location: Stamford, CT Age: Over 65 Experience Level: Power User Owned Product: 3-4 months
Rating: 5/5 Purchased to replace older Firewire/USB Pro Mini January 24, 2020 My 3+ year old OWC Mercury Elite Pro mini had a bad USB Micro-B jack failed due to everyday use while traveling. After calling support it was determined that preparing was not an option and it was out of warranty. Used it with the firewire for several months then purchased the NEW USB-C case. Inserted my old 2 TB drive and it works great. Way faster than my other drives. It was also the only case I could find that fit my 14.5mm high 2TB HD. Happy with the new disappointed that the old one could not be repaired.

I would recommend this item to a friend! This review is from OWC Mercury Elite Pro mini Portable External Storage Enclosure. Customer Videos:

Reviewer: N8QQW Location: Cincinnati, OH Age: 55-65 Experience Level: IT Professional Owned Product: less than a month
Rating: 4/5 Nice, solid case with quality cables June 28, 2019 I’ve tried a number of enclosures, and this one is the best I’ve found so far to house an SSD. Easy to install the drive, very solid case. I would have gone 5 stars, but one of the closure screws was stripped, so down a star for that. The back plate still secured fine, so not a big deal.

I would recommend this item to a friend! This review is from OWC Mercury Elite Pro mini Portable External Storage Enclosure. Customer Videos:

OWC Mercury Elite Pro mini 500GB SSD Bus-Powered, Multi-Interface Storage Solution Mfr P/N: ME6CM6EP500 OWC SKU: OWCME6CM6EP500 Bus-powered storage solution with USB-C and eSATA interfaces. Includes connection cables. 3 Year OWC Limited Warranty Ships: Same Day only $164.75
Add to CartOther World Computing ME6CM6EP500 In Stock, Click to Buy Now
Additional Capacities: 5400 RPM Hard Drive Models
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