1.0TB OWC Mercury Extreme Pro 6G
SSD Upgrade and HDD Replacement Kit for 21.5-inch iMac (2012 - 2019)
Mfr P/N: K21IM12HP1TB OWC SKU: OWCK21IM12HP1TB
$90.99 off - *NOW* Get Parallels Desktop Pro Edition - Windows/Multi OS Compatibility software for Mac - Only $29.00 with select OWC SSDs, HDDs, Memory, External Storage, and Optical Drives! (Limit 3 rebates, 1 rebate per qualifying item)
Must purchase with: Parallels Desktop Pro Edition for Mac - 1 Year License. SPECIAL PURCHASE
Complete DIY kit for upgrading to an SSD in your HDD-equipped 21.5-inch iMac (2012 - 2019)
- Add a high-performance OWC 6G SSD to your iMac.
- Pocket-sized USB bus powered ventilated enclosure for your iMac's HDD.
- Backed by free DIY install videos and expert support.
- 5 Year OWC Limited Warranty
The complete solution for your 2012 - 2019 21.5" iMac
Starts fast, stays fast
A true DIY upgrade
- 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 6G SSD
- (1) OWC Express USB 3.0 Enclosure
- (2) 2.25-inch Suction Cup
- (1) Torx T10s Driver
- (1) Adhesive Strip Set
- (1) Nylon Pry Tool (Spudger)
- (1) Screen Removal Tool
- (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
OWC Microfiber Wipe
Color
- Blue
Dimensions
- Length: 30.5 cm (12.0 in)
- Width: 30.5 cm (12.0 in)
1.0TB 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
- 960GB Useable Capacity
- Total Capacity: 1024GB
- 64GB Allocated to real-time data redundancy and error correction
Formatted Capacity
- 894GiB
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
- Yes
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
- 750TB total bytes written (TBW), equal to 294 GB per day for 7 years
Mac OS Compatibility
- Yes
PC OS Compatibility
- Yes
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 2.2 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
- Yes
Country of Origin
- Taiwan
TAA Compliance
- Yes
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
OWC Express USB 3.2 (5Gb/s) Bus-Powered Portable External Storage Enclosure
Drive Bays
- 1 bay supporting: 2.5-inch SATA drives
- Supports drives up to 2.2TB in capacity and up to 9.5mm in size
Storage Interface
- SATA
Device Ports
- (1) USB 3.2 Gen 1 Micro-B Port
Data Transfer Rate (Maximum)
- USB 3.2 Gen 1 : Up to 5Gb/s (or 625MB/s)
- USB 2.0 : Up to 480Mb/s (or 60MB/s)
- USB 1.1 : Up to 12Mb/s (or 1.5MB/s)
Chipset / Controller
- JMicron 20329
MTBF (Mean Time Between Failures)
- Varies depending on drive mechanism installed
Contact Start Stops
- Varies depending on drive mechanism installed
Mac OS Compatibility
- Mac OS 8.6
- Mac OS 9.0
- Mac OS 9.1
- Mac OS 9.2
- Mac OS X 10.0 Cheetah
- Mac OS X 10.1 Puma
- Mac OS X 10.2 Jaguar
- Mac OS X 10.3 Panther
- Mac OS X 10.4 Tiger
- Mac OS X 10.5 Leopard
- 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
- macOS 10.15 Catalina
- macOS 11.x Big Sur
- macOS 12.x Monterey
- macOS 13.x Ventura
- macOS 14.x Sonoma
- macOS 15.x Sequoia
PC OS Compatibility
- Windows NT 4.0
- Windows 98
- Windows 98 SE
- Windows 2000
- Windows ME
- Windows XP
- Windows XP 64-bit Edition
- Windows XP Professional x64 Edition
- Windows Vista
- Windows 7 32-bit Edition
- Windows 7 64-bit Edition
- Windows 8 32-bit Edition
- Windows 8 64-bit Edition
- Windows 8.1 32-bit Edition
- Windows 8.1 64-bit Edition
- Windows 10 32-bit Edition
- Windows 10 64-bit Edition
- Windows Server 2019
- Windows Server 2022
- Windows 11
Other OS Compatibility
- Linux
External Power Adapter
- No
Power Supply
- Bus-powered
Security Slot
- No
Power/Activity LED
- Yes
Housing Color
- Discreet Black
Housing Material
- ABS plastic
Dimensions
- Height: 1.4 cm (0.6 in)
- Length: 13.0 cm (5.1 in)
- Width: 7.8 cm (3.1 in)
Weight
- 56.0 g (0.12 lbs)
Country of Origin
- China
TAA Compliance
- No
Altitude
- Non-Operating: Varies depending on drive mechanism installed
Noise
- Varies depending on drive mechanism installed
Compatibility & Installation Videos







Videos
Learn More
Customer Reviews
Everything went great! Thank you!
I would recommend this product to a friend!
- Reviewer:Reviewer213982997
Wow, thank you so much for your fantastic review! We're thrilled to hear that everything went great for you! Your satisfaction means the world to us, and we can't wait to serve you again in the future!
Everything was there and worked perfectly super happy with the results.
I would recommend this product to a friend!
- Reviewer:Reviewer152702824
Wow, thank you so much for your amazing review! We're thrilled to hear that your iMac is running smoothly and that everything worked perfectly for you. Your satisfaction means the world to us, and we're excited that we could help enhance your experience! Enjoy your fast and responsive iMac!
It was intimidating at first, but with the step by step instructions, everything went fine and I'm happy with this product! It took several hours of intense concentration and light, but I had success and a much faster Mac!
I would recommend this product to a friend!
- Reviewer:Reviewer2891930342
Thank you so much for sharing your experience! We're thrilled to hear that you found our step-by-step instructions helpful and that you successfully upgraded your Mac with an SSD. It’s amazing how much of a difference that can make in performance! Your determination and focus really paid off, and we're so glad you're enjoying your faster Mac. Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/