Add second internal Hard Disk (7200 RPM)
I have a new iMac 27" Retina 5k Display bought at the end of the 2016.
I chose the model with the SSD inside.
I want to put a second internal Hard Disk (7200 RPM) into the iMac so i saw the ifixit guide. Although the guide is very well done and detailed i cannot understand what kind of supports i need to fix the new HD into the iMac, what kind of cables i need to make it working and what other stuff i have to buy to do it.