To connect the new hard drive, we need to modify some cables.

The hard drive has a standard 15 pin SATA power connection, but the logic board has a 6 pin slim SATA power connection. A cable to connect them doesn't exist (yet), so we're going to make one.

The two cables you need are:

15 pin Female SATA power to 4 pin Male Molex power.

13 pin Male Slimline SATA to 7 pin Female SATA / 4 pin Male Molex power.

Cut the white Molex connectors off both cables. The excess cable has to fit inside the mini, so just leave 3-4" on each cable.