I was using a Transcend 128GB USB 3.0 as a Fusion Drive on my Mac Mini 2014 but it took a crap and I had to warranty swap. Transcend told me that there SSD's are not for heavy use. Mind you I wasn't to happy about this. I'm looking back into this option again as I hate how slow my HDD is & the Fusion Drive really helped speed things up, I think atleast 3x speed difference with the feeling, plus it helped with the Ram. My question is I'm looking at 2 options. The Samsung EVO 850 250gb or the Samsung T1 250GB or Samsung Pro 850 128GB. In the end with buying the enclosure they should come out to the same price. Or is there a better SSD for under $100 with the enclosure. I'm trying to spend under $100 if possible. I was going to get a internal put in but Best Buy refuses to touch the 2014 Mac Mini.