

In general, be sure to purchase your hard drive or SSD from a vendor that has tested the storage it sells with your particular type of Mac to ensure full compatibility and ideal performance.

How can you fix the unrecognized external SSD and access your files stored on it? You will find the answer and troubleshoot this problem in this post. It’s a simple diagnostics tool, but because it was designed for Intel by Intel, it’s one of the most accurate tools you can use on your system – and it’s totally free to boot. Intel Solid-State Drive Toolbox If you’re using an Intel SSD, their Solid-State Drive Toolbox is the tool you want to have. It's definitely frustrating, especially when you have important files stored on it.

However, hard drives not working or showing up issue is so prone to happen even when you unplug the external SSD from the Mac and later on plug in the SSD again. You can't access a Sandisk, Crucial, or Samsung T3 when the external SSD is not recognized or detected by Mac, whether the external SSD was working for a long time or it's a new SSD you bought recently. Summary: This a full guide to external SSD not recognized on Mac issue, which includes both reasons and solutions to this issue, as well as how to recover lost data when external SSD is not showing up on Mac.
