Seasonic S12III-650 Guide De L'utilisateur page 6

4. Install your Seasonic PSU
High powered graphics cards are usually outfitted with two (or three) PCIe
power connector slots. Seasonic prefers the use of two (or three) separate PCIe
cables to connect these cards to your power supply.
ATTENTION! The intended use of the PSU is to power PC systems. For mining
usage, please contact Seasonic for special cables.
Recommended Standard