Nzxt 80 PLUS Bronze ATX12V/EPS12V 550 Power Supply with Active PFC Hale82 V2 550W 80 Plus Bronze Certification ensures efficiency levels up to 85% Maximum Power: 550W Type: ATX12V V2.31 & EPS12V V2.92 Fan: 1x 135mm Silent Fan Connectors: 1x 20+4pin Main Connector, 1x 4+4pin CPU Connector, 4x 6+2pin PCI-Express Connectors, 6x 15pin SATA Connectors, 3x 4pin Peripheral Connectors, 1x 4pin Floppy Connector