BitFenix Formula 650W

High Efficiency Layout: Formula is an extremely high efficiency power supply with an 80+ Gold Efficiency certification

Intelligent Fan-Curve: Formula can operate at room temperature with minimum noise even at 60% load, meaning that the noise level is dead silent even carrying out intensive work loads.

Maximum Power on +12V Rails: Formula Gold can deliver full power on +12V rails due to the use of practically set current load limits on different rails..

Ultra Efficient: Formula Gold is rated at a Power Factor of 0.99, and is extremely efficient with an 80+ Gold efficiency certification. With 87+ (20% to 100% load)/ 90+ (40% to 60% load) high efficiency design

DC-to-DC Circuit: Due to the use of a separate DC-to-DC circuit to convert +12V to +5V and +3.3V