Can PCI-Express 2x 8 Pin (6+2) single cable damaged PSU?

[Cyntarius]

GPU: MSI GeForce RTX 3080 Gaming X Trio 10G 

PSU: Corsair 750W RM750x 80+ Gold Modular Power Supply (CP-9020179-AU)

 

A question guys, The MSI GeForce RTX 3080 Gaming X Trio 10G has 3 conectors - 8pins each one and my psu has only 2 conectors - 8 pins. 

Is safety to use a single PCIe cable 8 pin and second cable PCIe cable 2 x 8 pin to fill the 3 conectors on my RTX 3080 Gaming X Trio?

 

Thank very much for the help, I am worried to damaged my PSU

[Spotty]

The RM750x has two cables with 2 connectors on the end of each cable, for a total of 4 connectors. You use 2 connectors off one cable and then one connector off the second cable for a total of 3 connectors plugged in from 2 cables.

[Cyntarius]

Thank you for your answer, but 1 cable PCIe with 2 connectors at the end can handle 300watts? I know each cable can handle 150Watts but those cable end by 2.