Posted by a reviewer on Amazon

When i got the new os in the fall my macbook would freeze all the time even just typing in the password

Posted by a reviewer on Amazon

Then one of the senior applecare people mentioned something to the effect that my model macbook pro retina 2014s sd card slot was using a usb bus which i suppose is slower than the later models and that the normal use of this slot for photos and random data storage was not usually an issue but in this case with the majority of my data residing on the tardisk my original ssd bring 128 the tardisk being 256 and after reinstalling the os most the data was now on the tardisk that there was a bottle neck due to the inability of this much data to move over this usb bus inside the macbook

Posted by a reviewer on Amazon

Now i am saying everything i understand about this and i may have missed something but this is what i came away with having worked with about 6 different applecare people including 3 senior applecare people

Posted by a reviewer on Amazon

Tardisk upon hearing this diagnosis from apple gave me a full refund

Posted by a reviewer on Amazon

Because tardisk directly stood behind their product when in my case it did not perform to the spec they gave a full refund even months later

Posted by a reviewer on Amazon

The applecare people were all interested when i described what the tardisk did after it was peared and were quite amazed and confirmed that indeed the data was being read across both the ssd and the tardisk

Posted by a reviewer on Amazon

Also worth noting applecare agreed tardisk would not void any applecare warranty so applecare absolutely helped even though this was handling the data

Posted by a reviewer on Amazon

So i suppose my scenario is the worstcase scenario