Name: 240GB OWC DIY SSD Bay Add-In Kit for 27-inch iMac (2011) with OWC Mercury Extreme Pro 6G SSD
Brand: OWC
SKU: OWCK27IM11SP240
Rating: 5 (8 reviews)

240GB OWC Mercury Extreme Pro 6G

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We recommend 480GB OWC DIY SSD Bay Add-In Kit for 27-inch iMac (2011) with OWC Mercury Extreme Pro 6G SSD (Mfr P/N: K27IM11SP480) from OWC for $94.74 as a suitable alternative.

Complete DIY kit for adding an SSD to the internal SSD bay of your 27-inch iMac (2011)

Brings 6G speed and performance to your system
Easily expands your internal storage
Included durable toolkit makes installation easy
No drivers or extra software required for operation
5 Year OWC Limited Warranty

Reviews (8)

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The complete solution for your 2011 iMac

Configuration flexibility is yours when you add a second internal drive using the OWC SSD Bay Add-In Kit. Boost your storage capacity by adding additional storage, and enjoy near-instantaneous boot and app loading times thanks the performance of an OWC Mercury Extreme Pro 6G SSD.

Starts fast, stays fast

Even though many SSDs use low cost, less robust components in their design, they can still offer enticing short term bust speeds which are perfectly suitable for light duty uses. However, those drives are not designed to deliver consistent sustained speeds over their capacity rating, which results in a dramatic slowdown to even hard drive speeds under demanding use.

The fifth generation of Mercury Extreme Pro 6G SSD was built to start fast and stay fast at over 450MB/s sustained. Its development began with using the best flash storage components and technology available. Next, after being nearly completely filled to capacity with data, it had to deliver the same high speed as if it were empty. This drive doesn't flinch at any time or capacity level and drop read/write speeds like other drives do…it easily handles the most extreme, mission-critical uses you can throw at it.

We are here to help

The OWC SSD Bay Add-In Kit comes backed by OWC's award-winning U.S.A. based technical support team which is readily available to assist you with your upgrade should you have any questions. If you are not fully confident of your ability to add an SSD to your 2011 27-inch iMac, you can choose to have OWC "Do It For You" via our Turnkey Upgrade Installation Program.

Before attempting this installation, OWC recommends watching the associated instructional video in its entirety to determine your ability to perform this complex procedure. OWC assumes no responsibility for damage that may occur during the install.

Includes

(1) OWC Mercury Extreme Pro 6G Solid-State Drive
(1) iMac to SSD SATA 6Gb/s Data & Power Cable
(2) 2.25-inch Suction Cup
(1) Torx T10s Driver
(1) Torx T6s Driver
(1) Phillips PH2 Driver
(1) Nylon Pry Tool (Spudger)
(1) Adhesive Strip Set
(1) OWC Blue Microfiber Screen Cleaning Cloth
5 Year OWC Limited Warranty

This kit contains consumable and/or one time use components and therefore is non-refundable if opened. If you have any concerns about your ability to perform the upgrade, you can return the unopened kit for a refund.

Specs

240GB OWC Mercury Extreme Pro 6G 2.5-inch 7mm SATA 6.0Gb/s Solid-State Drive

Use of a 2.5-inch SSD in a 3.5-inch drive bay requires an adapter bracket such as the NewerTech AdaptaDrive.
Use of any SSD in an external enclosure is dependent on the power available from the enclosure. OWC Mercury Electra 6G and Mercury Extreme Pro 6G SSDs are engineered for use in any OWC Enclosure that supports 2.5-inch SSDs.

Total Capacity

240GB Useable Capacity
Total Capacity: 256GB
16GB Allocated to real-time data redundancy and error correction

Formatted Capacity

224GiB

Drive Format

Unformatted (Instructions on formatting here)

Controller

Phison PS3112-S12 with 7% over-provisioning

NAND Flash Components

Micron Synchronous Triple-Level Cell (TLC) 3D NAND Flash

S.M.A.R.T. Attributes

Standard attributes supported

Native Command Queuing (NCQ)

Up to 32 simultaneous commands

RAID Support

Form Factor

2.5-inch 7mm

Drive Interface

SATA 6.0 Gb/s

Random 4K Read

Up to 100,000 IOPS

Random 4K Write

Up to 90,000 IOPS

Sequential Read (Max)

Up to 550 MB/s

Sequential Write (Max)

Up to 530 MB/s

Nonrecoverable Read Errors

1 per 10¹⁶ bits read

MTBF (Mean Time Between Failures)

1,600,000 hours

Wear Leveling

Supported

TRIM Support

OS Dependent

Security

TCG Opal

Endurance

175TB total bytes written (TBW), equal to 69 GB per day for 7 years

Mac OS Compatibility

PC OS Compatibility

Other Requirements

Requires a Mac, PC, or drive enclosure with an available SATA drive bay and connection. SATA III (6.0 Gb/s) required for best performance.

Write Mode (Max)

Up to 2 Watts

Seek Mode (Max)

Up to 2.1 Watts

Idle Mode (Max)

Up to 0.1 Watts

DEVSLP / DevSleep

Up to 5mW

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

Country of Origin

Taiwan

TAA Compliance

Ambient Temperature

Operating: 32°F to 158°F (0°C to 70°C)
Non-Operating: -40°F to 185°F (-40°C to 85°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)

Humidity

Operating: 0% to 90% non-condensing
Non-Operating: 0% to 93% non-condensing

Shock

Non-Operating: 1500 G max

Idle (Typical)

0.0 bels

Seek (Typical)

0.0 bels

Applications

Select Macs And PCs
Select External Enclosures
Select PCIe Host Cards
Productivity Apps
Creative Apps
Backups
Gaming

Compatibility & Installation Videos

iMac

iMac (27-inch, Mid 2011)

Mid 2011

Model ID: iMac12,2

2.7GHz & 3.1GHz Core i5 & 3.4GHz Core i7

Detailed Specs Install Videos

Videos

iMac Install Video

How to Install a 2.5-inch SSD in the SSD Drive Bay of a 27-inch Apple iMac (Mid 2011)

Model ID: iMac12,2

Customer Reviews

5 out of 5

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100%

just like new!

I have been working with a slow imac for years, just barely tolerating it. Now it is so snappy. Boots up in a flash. Most of my old apps no longer work now. I will slowly have to recreate my old desktop experience by updating or repurchasing. The accompanying how to video did the trick. I put my ram modules in the wrong slots at first. oops. got the chimes of doom. It was easily remedied. I tried unsuccessfully several times to get a new OS on the new drive using internet back up techniques. It eventually worked when I booted up from the back up boot drive hidden in the old hard drive

I would recommend this product to a friend!

Verified Purchase.

Redbird44,

Aug, 31 2021

review of: 1.0TB OWC DIY SSD Bay Add-In Kit for 27-inch iMac (2011) with OWC Mercury Extreme Pro 6G SSD

Reviewer:Redbird44

Response from OWC, Support

Glad to hear you got your iMac working like new again, if you ever need any other upgrades please let us know!

Ooooh, Baby…

Wow! My Mid-2011 iMac 27" is like a different computer now. More accurately, it is like a NEW computer now. In general, this ten-year-old computer had become a wallowing pig in High Sierra. Now it runs like I just unboxed it. NOTE: This kit *adds* an SSD while leaving the HDD installed. The other OWC kit replaces the HDD with an SSD. This other kit uses a drive caddy to mount the SSD where the HDD lives, and (most importantly) includes a temperature sensor. (If you do not tell the logic board the temp of the drive installed in that bay the fans will run at 100% all the time. The kit I am reviewing requires you to more or less remove the logic board, as the SATA cable must be plugged into the backside of the board, and then the cable must be routed behind everything and fit in the opening the main cables run through. It is less ideal than the HDD replacement kit, but if you want to have two internal discs this is the best way. In the kit I am reviewing, the SSD has to fit into a small void that was not designed for this, and is held in place via sticky pads that work very well. The other kit (HDD Replace) is much easier to install. However, after all the work, having this dual-drive setup in my iMac is pretty trick. I like it and am glad I did the work. And again, this thing flies now. Amazing! Highly recommended!