It's not a brand I'm familiar with, so I'm only guessing here. Just because it plugs into the board with 24pins doesn't mean you need 24pins on the end that plugs into the PSU. By using extra wires you are allowing more voltage to go them without the wire heating up as much. (personally I'd just use a thicker wire.) As long as you have the 24pin or 20+4 pin that goes into the motherboard I wouldn't worry about how many pins are on the PSU side. Just make sure you plug them into the right spot.