Purchasing the correct OS External Drive , when Upgrading my Mac mini to YOSEMITE

WD External Drives External Drives for Mac
1

I am about to replace my mac with one that runs YOSEMITE.

I’ve noticed that the external drives are listed with different OS

systems.
Question: must the external drive  run YOSEMITE  also , or can I purchase

one that only runs example - leopard up to  mountain lion?

2

Hello and welcome to the WD community.

It is always good to look for a drive that has compatibility with the current Mac OSX, but this does not mean that some of the older drives may work on the current one, lets see if other users can share their experiences with this .

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