SILVERSTONE Tek Nightjar NJ520 520W Completely Fanless ATX12V / EPS12V 80 PLUS PLATINUM Certified Full Modular Active PFC Power Supply with Zero dBA Acoustics Fans: 0 Main Connector: 24Pin +12V Rails: Single PCI-Express Connector: 2 x 8-Pin SATA Power Connector: 4 Efficiency: 89%~92% at 20%~100% loading Over Voltage Protection: Yes Overload Protection: Yes