1.The new version computer psu connector adds the 3.3V/5V/12V /PS-ON/Standby power LED, It can directly show the PSU work status 2.Use this power adapter Atx Psu Connectors to turn on and off the two power supplies with low power at the same time, thereby increasing the power of the power supply 3. you can connect molex 4Pin/SATA/ATX 6Pin/4Pin cable any one from the main PSU to this power adapter, and the secondary power supply's 24PIN Male is connected with the PSU's 24Pin female 4. power supply board Plug and play simplicity manages additional power for video cards, hard drives and cooling fans.