I sought out the simplest and most detailed article to assist and found it at ars technica. Last but not least, start Carbon Copy Cloner once again, choose your source disk (external), Destination Disk (Aura Pro) and select ‘Clone’. Click on the OWC Aura Pro on the left and then select ‘1 Partition’ in the Volume Scheme, Format as ‘Mac OS Extended (Journaled), click ‘Options’ and select the GPT partition map and ‘Apply’. Go to Launch Pad/Utilities and select Disk Utility.
We then need to format the new Aura Pro and clone the disk from the external to the Aura Pro. This item: OWC 1.0TB Aura Pro X2 SSD for MacBook Air (Mid 2013-2017), and MacBook Pro (Retina, Late 2013 - Mid 2015) Computers (OWCS3DAPT4MB10) 199.00 In Stock. It will restart from the external and the next thing that appears would scare the heck out of you if this were a Windows system. Once the drives have been replaced, secure the base with cover and pentalobe screws, turn the system over, plug in the external drive and reboot. A definite plus for OWC is that they include the proper pentalobe and torx screwdrivers with all 2012 Aura Pro SSD purchases. Just as a heads up, only the 1.2mm pentalobe screwdriver will work and, once the back is off, a T5 Torx is needed to remove the stock SSD and replace it with the Aura Pro. This is where the pentalobe screwdriver comes in handy and it is the only one that will successfully remove the ten screws from the base of the MBA. Once complete, your system will automatically boot from the external source so you can switch off the original SSD with the new OWC Mercury Aura Pro.
You then start Carbon Copy Cloner, choose your source (system drive) and destination disks (external drive) and hit ‘Clone’.
From there, you need to prepare your external storage medium so that it is compatible with Mac OS X.
The first step is to download and install Carbon Copy Cloner and ensure that your external drive is connected to the MBA. I started this challenge with only the advice that Carbon Copy Cloner was free and would do the job perfectly along with the need for an external storage medium and pentolobe screwdriver. Also included are installation tools, a heat sink, a USB cable, and an Envoy Pro carrying case.If my less than 30 days of experience on a MBA, and having migrated this system the first time without any assistance whatsoever, provides a bit of confidence with respect to simplicity, than so be it. The Aura Pro X2 comes complete with an Envoy Pro external enclosure that enables you to use your Mac's original flash SSD as a fast, external USB drive with transfer speeds up to 426 MB/s. Additionally, the Aura Pro X2 is calibrated to consume only 5.7W during operation and to run cool. The drive reserves 7% of the overall capacity as free space to perform background maintenance tasks that optimize the health, performance, and endurance of your flash drive.
The Aura Pro X2 is designed for macOS High Sierra 10.13 and later, taking full advantage of the advanced features of APFS including strong encryption, copy-on-write metadata, space sharing, cloning for files and directories, snapshots, fast directory sizing, atomic safe-save primitives, and improved file system fundamentals.
The drive uses 3D TLC synchronous NAND flash memory with advanced SLC caching to deliver sequential data read and write speeds of up to 15 MB/s respectively�up to twice as fast as the factory-installed drives.
Designed for installation in a Mac Pro desktop computer (late 2013), this internal flash/SSD drive upgrade features a PCIe 3.1 x4, NVMe 1.3 interface and a custom blade form factor. Keep your edge with the Aura Pro X2 480GB NVMe SSD Upgrade Kit from OWC / Other World Computing.