Sata Power Radio Shack Can You Insert Both Molex And Sata Power Connectors Together In A Hard Drive?

Can you insert both molex and sata power connectors together in a hard drive? - sata power radio shack

I have a Hitachi hard disk SATA and Molex for power. The drive is operated by the SATA ports. I wonder whether something will happen when you insert the Molex power connector to the device with the SATA. Thank you.