The CHIEFTEC Proton 850W power supply, model BDF-850C, powers desktop computer systems. Its 850 W rated combined output and ATX 12V 2.3 specification describe its role in a PC build.
80 PLUS Bronze efficiency certification and active PFC are specified. A 140 mm fan provides cooling. The PS II form factor measures 160 × 150 × 87 mm (depth × width × height), information useful when checking fit in a case.
Connections include a 24-pin (20+4) motherboard plug, a 4+4-pin EPS connector, six 6+2-pin PCI-E connectors, nine SATA connectors and three MOLEX connectors. They provide options for powering a motherboard, graphics hardware, drives and other compatible desktop components.