On page 4, there is an "IDE Power" connector. It looks a lot like a 4 pin CPU fan connector, but it (obviously) provides different voltages that are appropriate for 3.5" IDE drives (5V, 12V) and ...

Your picture is of a 20-pin main ATX connector an a 4-pin ATX12V power connector. These do not combine to form the newer 24-pin main ATX connector. That said, many motherboards with a modern 24 ...

The transition from the CCS1 to the Tesla's NACS charging connector is expected to kill the SAE J1772 (AC) plug, because NACS can be used for both AC and DC.