
This upgrade guide works on MacBook Pro late 2013-mid 2015 models, MacBook Airs mid-2013- 2017, iMacs (with fusion drive or SSD) late 2013- 2017 (probably 2019 as well), Mac Pro 2013, and Mac mini 2014.It’s likely that you will not need this but it’s better to be safe than sorry. There is a chance that some issues with Mac’s recovery mode will prevent you from installing macOS through it. A flash drive with more than 10GB of space for the installer of the latest version of macOS.If you tend to use iCloud for your Time Machine backup then ignore this. An external hard drive that has more space than your laptop’s current SSD for a Time Machine backup.You will need an Apple’s SSD adapter that matches the pin on your SSD drive and the pin on your Mac’s SSD slot.Most users usually upgrade their SSD to 1TB of storage but the same company’s 2TB SSD should work too. A compatible SSD: Any NVMe SSD should work well, but for 2012 and early-2013 MacBook Pro models, you’ll need an mSATA SSD such as the Crucial MX500 1 TB.

You can also get a Tekton screwdrivers kit that includes both of them

In the past, this upgrade was quite expensive. Therefore, an upgrade in SSD is surely necessary. However, this amount of storage will be running out quickly if you have done a lot of heavy-demand works like photo editing or video. The MacBook Pro models from late-2013 to mid-2015 are often configured with 256GB or 512GB of solid-state drive (SSD) storage by default.
