To upgrade the hard drive in the Mac Mini you will need T6 and T8 screwdrivers, and a replacement 2.5-inch hard drive or solid-state drive with a height of no more than 9.5mm.
Caption byDan Graziano
/ Photo by Dan Graziano/CNET
If you are replacing just the Mac Mini's hard drive, the memory doesn't need to be removed. If you are replacing only the RAM, you can do so without removing the fan, the plastic guard, and the antenna grill.
Caption byDan Graziano
/ Photo by Dan Graziano/CNET