Keep cool and skip the noise with the PRIME Fanless PX-500 500W 80 PLUS Platinum Modular Power Supply from SeaSonic . Featuring a fanless and fully modular design, this 500W power supply utilizes a single +12V rail. And, with an 80 PLUS Platinum rating, this PSU is also capable of up to 92% efficiency at 50% load. Cables feature a modular and flat design, intended for optimization while also reducing drag inside a case. The SeaSonic PRIME Fanless PX-500 provides two PCIe connectors, as well as eight SATA and five 4-pin Molex or peripheral connectors.