Wanna ask about the CPU power cable on this PSU unit since there website says it has 4/8 pin attached https://seasonic.com/product/s12ii-620/ and my Motherboard (asrock 880gm-le) has only 4 pin CPU power port (atx12v1) and I wanna ask if the PSU CPU cable is detachable like can detach it and plug it in on my 4 pin port (atx12v) motherboard? Im still very newbie at this wiring thing