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DIY Bundle

and OWC Data Doubler

Mercury Extreme® Pro 6G SSD and Data Doubler
Everything You Need
Add a second drive to your Mac
Use the OWC Data doubler to install a blazing fast OWC 6G SSD inside your 2011 or later Mac mini. This DIY kit includes all the tools necessary to complete the installation of the Data Doubler and the new drive. Coupled with our free installation videos that offer step-by-step instructions, you can perform the entire upgrade on your own.
Bigger, better, and stronger
The Mac mini is already an amazing feat of engineering, and you can pack even more power inside it with the OWC Data Doubler and an OWC 6G SSD. An OWC SSD is simply the best way to expand capability of your already powerful mini, and even better, you can do it yourself!
High-performance storage
Faster startup and quick response times with over 500MB/s peak sustained data rates, our 6G SSD line delivers unbeatable performance with 100X greater data protection than enterprise class Hard Disk Drives, and RAISE technology for RAID like data protection and reliability. And it's backed by our amazing OWC SSD Limited Warranty.
The Right tools for the job
With the 5-piece Toolkit from OWC, everything is included to complete the installation of the SSD. Once the upgrade is complete, you'll have a handy set of tools for future computer upgrades.

While OWC encourages the DIY philosophy, this is a challenging install that requires advanced skills. If, after watching the how-to video, you are not fully confident of your ability to perform the installation, you can choose to have OWC "Do It For You" via our Apple Mac mini Installation Service. OWC assumes no responsibility for damage that may occur during the install.

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:

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.

240GB Mercury Extreme Pro 6G SSD Specifications:


SandForce 228x Series Processor with 7% Over Provisioning
Tier 1 Major Multi-Level Cell (MLC) High-Performance Sync-NAND Flash
Form Factor
Standard 7mm 2.5"
SATA 6Gb/s, 3Gb/s & 1.5Gb/s supported, SATA 3.0 Compliant
240GB useable capacity
Total Flash Memory Components – 256GB
16GB allocated to real-time data redundancy & error correction
Formatted Capacity2
RAID Support
Qualified for single drive and multiple drive production workstation RAID 0/1/10/0+1 and SPAN usage.
SMART Attributes
Native Command Queuing
up to 32 commands
Manufacturer Model Number
RoHS Compliant


Height (max)
7mm (0.276″)
OWC 7mm – 9.5mm Adapter
1 included (buy additional)
Width (max)
70.06mm (2.758″)
Length (max)
100.12mm (3.941″)
77 grams +/- 2 grams
0.170 lbs +/- 2.71 oz


Data Reliability
ECC Recovery: Up to 55 bytes correctable per 512-byte sector
Chip Based Data Encryption: 128-bit AES-compliant
TRIM Support
OS Dependent
Nonrecoverable Read Errors
Less than 1 sector per 1016 bits read
5 Year OWC SSD Limited Warranty
(Standard return policy applies.)


Reads 6Gb/s (up to)
Writes 6Gb/s (up to)
Random 4K Read4
Up to 60,000 IOPS
Random 4K Write4
Up to 60,000 IOPS
Read Latency
less than 0.1ms
Write Latency
less than 0.1ms


Read: 3000mW (3.0W) Maximum draw
Write: 4500mW (4.5W) Maximum draw
Less than 1000mW (1.0W)

Environmental (Operating)

Temperature (°F)
32°F to 158°F
Temperature (°C)
0°C to 70°C

Environmental (Non-Operating)

Temperature (°F)
-40°F to 185°F
Temperature (°C)
-40°C to 85°C


Idle (Typical)
0.0 bels
Seek (Typical)
0.0 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.
  4. Specifications provided by SandForce.
  5. Temperature reporting is currently an unsupported feature because due to the operating characteristics of SSDs, it is highly unlikely one would ever exceed an OWC Mercury SSD's stated operating temperature ceiling of 158F/70C. However, we are looking into supporting this feature in the future via a firmware update. Firmware updates can be found here:
Manufacturer provided specifications for Other World Computing p/n DD1MMSSDP240 UPC#: 812437026146


Install Video

This product is compatible with... Learn how to find your Mac's model ID
Mac mini Intel
Mac mini (Late 2012)
Upper drive configuration*
(October, 2012)
Model ID: Macmini6,1 & Macmini6,2
2.3GHz, 2.5GHz, 2.6GHz
Mac mini Intel
Mac mini (Late 2012)
Lower drive configuration*
(October, 2012)
Model ID: Macmini6,1 & Macmini6,2
2.3GHz, 2.5GHz, 2.6GHz
Mac mini Intel
Mac mini (Mid 2011)
(July, 2011)
Model ID: Macmini5,1 & Macmini5,2
2.3GHz, 2.5GHz, 2.7GHz
* A small number of 2012 units were shipped with the drive mounted in the upper drive bay rather than the more typical lower bay shown in this video. If you have a 2012 or later model, you will want to determine the configuration of your Mac mini's drives prior to ordering. To do this, open Applications/Utilities/Disk and click on the grey drive icon at the left-edge of the window. If you see "Lower" after the "Connection ID" at the bottom-left corner of the window, you may proceed using the standard installation instructions. If you see "Upper" then you have a special configuration which will need additional components, and you will need to also refer to the addendum video.


  • (1) Mercury Extreme Pro 6G SSD
  • (1) 5-Piece Mini Toolkit
    • (1) Phillips #00 driver
    • (1) Torx T6 driver
    • (1) Torx T8 driver
    • (1) Straight Blade 1.8 mm driver
    • (1) Nylon Pry Tool
  • (1) Mac mini flex cable
  • (4) Rubber grommet
  • (4) Hex screw
  • Data Doubler for Mac mini (2011-2012) Installation Guide (Download Only)

NOTE: This kit contains consumable and/or one time use components and therefore is not covered by any warranty. If you have any concerns about your ability to perform the upgrade, you can return the unopened kit for a refund. The 5-Piece Toolkit (except for nylon pry tool) included with this kit is covered by a 1 Year Warranty.


The best warranty is one you never have to use - but should the need occur - we're proud to provide a superior level of support and service coverage to our customers.

5 Year OWC SSD Limited Warranty

Even when not used, we understand the peace of mind afforded by a longer warranty period. OWC's industry leading coverage is a testament to our confidence in the reliability of the solutions that we offer. OWC solutions are engineered to demanding quality standards in order to deliver the most reliable, highest performance available on the market in each storage category.

Customer Ratings

Write a Review 4.8 / 5 147 out of 157 (94%) reviewers would recommend this product
Verified Buyer
Reviewer: mvpereira Location: Rio de Janeiro, BRAZIL Age: 35-44 Experience Level: Home User Owned Product: 1-3 months
Rating: 5/5 Quicker boot July 12, 2018 I was looking for improvement in my Mac mini performance and I knew disk is one of the aspects. I bought this kit to improve boot times with memory upgrade as well and the performance increase was easily noticed. The videos online and the manual that came with the kit explains step-by-step how to upgrade the computer, with disassemble and assemble instruction. The task isn't easy, but reading carefully and watching the videos, anyone with experience with hardware can do this upgrade.

I would recommend this item to a friend! This review is from DIY Kit: 480GB OWC Mercury Extreme Pro 6G SSD and Data Doubler.. Customer Videos:

DIY Bundle 240GB OWC 6G SSD and OWC Data Doubler Mfr P/N: DD1MMSSDP240 OWC SKU: OWCDD1MMSSDP240 DIY kit includes a Mercury Extreme Pro 6G SSD, Mac mini flex cable, and tools for installing a second drive in the 2011 and 2012 Mac mini 5 Year OWC Limited Warranty
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