If you need the 20+4 pin, then you'll have to get that; otherwise the 20+4 or 24 pin plug with both work with the 24 pin receptacle. And just to give you other options, the OCZs are nice, as well as the Corsair PSUs. I like the Corsairs because all of your main voltage power draws come off of one single "rail" (+12V) where on many other brands, they come off multiple. This way, if you're unfamiliar with building a system you don't risk overloading the PSU and damaging it.