This refers to the conversion efficiency of the power supply. Convert from AC to DC. There is a concept of PFC, if the active PFC conversion efficiency is high, it will save electricity, if it is passive, it will be very low. When choosing, try to choose an active and better power supply, and it will be selected into the trademark of 80PLUS. Refers to more than 80% efficiency.
Choosing gold or platinum certified power supply can provide more stable power supply under high load. Note: As for the last item in the chart, it cannot be explained. Titanium is the English for metallic titanium, and the literal translation is the certification of titanium gold medal.