Description gamemax performance range power supplies are a great choice if you are building a home or office system as a mainstream model there is a total of 4 sata connectors for raid storage and up to 85 efficiency for power saving and a single 12v rail for extreme cpugpu power consumption good dc quality with lower ripple and noise and fully protected functions are used to guard your components in the system when installing there is no struggle with the longer 20 4 pin and 4 4 pin