📦 Shipping Notice – Public Holiday in Northern Ireland
Due to the Battle of the Boyne public holiday, there will be no postal service on Friday 11th and Monday 14th July 2025.
👉 Please note:
All orders placed after 4:00 PM on Thursday 10th July — including all orders placed over the weekend and on Monday 14th — will be shipped on Tuesday 15th July.
You're welcome to place orders anytime during this period — dispatch will resume first thing Tuesday.
Thanks for your patience and understanding!
0800 195 4072
Free Shipping
-
-
-
- Drive Enclosures
- Expansion Card Enclosures
- Graphic Card Enclosures
- NAS Enclosures
- Thunderbolt 5 Enclosures
- Thunderbolt 4 Enclosures
- Thunderbolt 3 Enclosures
- USB4 Enclosures
- USB-C Enclosures
- USB Enclosures
- Thunderbolt PCIe Mac Expansion Systems
- 1U Rackmount Enclosures
- 2U Rackmount Enclosures
- 3U Rackmount Enclosures
-
-
-
- Drive Enclosures
- Expansion Card Enclosures
- Graphic Card Enclosures
- NAS Enclosures
- Thunderbolt 5 Enclosures
- Thunderbolt 4 Enclosures
- Thunderbolt 3 Enclosures
- USB4 Enclosures
- USB-C Enclosures
- USB Enclosures
- Thunderbolt PCIe Mac Expansion Systems
- 1U Rackmount Enclosures
- 2U Rackmount Enclosures
- 3U Rackmount Enclosures
- Home
- All Products
- 2011 iMac 27-inch SSD Add-On Kit – Uses Bay Under DVD Drive, OWC Mercury Electra 2011 iMac 27-inch SSD Add-On Kit – Uses Bay Under DVD Drive, OWC Mercury Electra
- Description
- Specifications
- Compatibility
- Product videos
- Reviews
Complete DIY bundle kit for adding an extra SSD to the internal SSD bay under DVD drive on a 27-inch iMac 2011
This SSD bundle does not change your primary HDD but adds another HDD/SSD to your iMac-enabled drive bay. Please watch the video from the Product Videos Tab to understand this upgrade.
Add a second SSD to your iMac using the hidden drive bay below the optical drive + keep your DVD drive.
The complete solution for your 2011 iMac
Configuration flexibility is yours when you add a second internal drive using the OWC SSD bay kit. Boost your storage capacity by adding additional storage, and enjoy near-instantaneous boot and app loading times thanks to the performance of an OWC 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 Electra 6G 6G SSD was built to start fast and stay fast at over 500MB/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
OWC's SSD bay kit comes backed by OWC's award-winning 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, please visit your local PC shop to help.
Please note, that before attempting to perform this installation, it is recommended you watch 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 Electra 6G 6G SSD
- (1) SSD Power Cable for 2011 27" iMac
- (2) OWC 2-1/4" Suction Cup
- (1) Torx T10 driver
- (1) Torx T6 driver
- (1) Phillips #2 driver
- (1) Nylon Pry Tool (Spudger)
- (1) iMac Adhesive tape set for SSD installation
- (1) OWC Blue Microfiber Screen Cleaning Cloth
- 3 Years Warranty
NOTE: This kit contains consumable and/or one-time-use components and is non-refundable if opened. If you have concerns about your ability to perform the upgrade, you can return the unopened kit for a refund.
- Available capacity 250GB/ 500GB/ 1TB/ 2TB/ 4TB
- Manufacturer part numbers (SSD) OWCS3D7E6G250/ OWCS3D7E6GD05/ OWCS3D7E6GD10/ OWCS3D7E6GD20/ OWCS4D7E6GT4.0
- Manufacturer part numbers (bundles) OWCK27IM11SE250/ OWCK27IM11SE500/ OWCK27IM11SE1TB/ OWCK27IM11SE2TB/ OWCK27IM11SE4TB
- Form Factor 2.5-inch 7mm
- Storage Interface SATA 6.0 Gb/s
- Tools Yes
- Format Unformatted
- S.M.A.R.T. Attributes Standard attributes supported
- Native Command Queuing (NCQ) Up to 32 simultaneous commands
- RAID Support Yes
- RoHS Compliant Yes
- Reach Certification Yes
- Warranty 3 years
- Random 4K Read / Random 4K Write
- 250GB - Up to 54,000 IOPS / Up to 81,000 IOPS
- 500GB - Up to 100,000 IOPS / Up to 90,000 IOPS
- 1TB - Up to 100,000 IOPS / Up to 90,000 IOPS
- 2TB - Up to 100,000 IOPS / Up to 90,000 IOPS
- 4TB -
- Sequential Read (Max) / Sequential Write (Max)
- 250GB - Up to 535 MB/s / Up to 465 MB/s
- 500GB - Up to 540 MB/s / Up to 500 MB/s
- 1TB - Up to 540 MB/s / Up to 500 MB/s
- 2TB - Up to 540 MB/s / Up to 500 MB/s
- 4TB - Up to 524 MB/s / Up to 516 MB/s
- Nonrecoverable Read Errors 1 per 10/16 bits read
- MTBF (Mean Time Between Failures) 1,600,000 hours
- Wear Leveling Supported
- TRIM Support OS Dependent
- Security Secure Erase (SE), Crypto Erase
- Endurance
- 250GB - 1,500,000 hours
- 500GB - 340TB total bytes written (TBW), equal to 187 GB per day for 5 years
- 1TB - 681TB total bytes written (TBW), equal to 374 GB per day for 5 years
- 2TB - 681TB total bytes written (TBW), equal to 374 GB per day for 5 years
- 4TB - 435TB total bytes written (TBW), equal to 239 GB per day for 5 years
- Mac OS Compatibility Yes
- PC OS Compatibility Yes
- Other Requirements Host or device with a built-in SATA connection.
- Write Mode (Max) Up to 2 Watts
- Seek Mode (Max) Up to 1.9 Watts
- Idle Mode (Max) Up to 0.15 Watts
- Dimensions
- Height: 0.7 cm (0.3 in)
- Length: 10.0 cm (3.9 in)
- Width: 7.0 cm (2.8 in)
- 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: 5% to 90% non-condensing
- Non-Operating: 0% to 93% non-condensing
- Applications General Purpose High-performance SSD
- Notes
- 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.
- iMac (27-inch Mid 2011) (May 2011) Model ID: iMac12,2 - A1312 - EMC - 2429 | 2.7GHz i5, 3.1GHz i5, 3.4GHz i7