I have a Late 2014 27" iMac Retina with a 500 gig SSD HD that is running out of space. Looking to upgrade to either 1-2 TB External SSD that will be the main HD. What do you recommend under $250? Thanks
Did you do this install?a 500 gig SSD HD
You probably won't find an external 2TB SSD for less than $250.What do you recommend under $250? Thanks
Before going further, can you give us the benchmark speeds of the drive you have installed NOW?
By "going external" -- easiest solution is to use a USB3 SSD -- you're going to get reads around 420-430MBps, maximum.
How much different is this from what you get NOW?
If the internal is running well, but just "running low on space", then add an external to "supplement" your storage space. You don't need to boot from it unless it's going to give you speeds equal to or better than what you see now from the internal SSD...