Thermaltake TR2 RX 850 Watt ATX Active PFC Haswell Ready Power Supply 850W Power supply and compliance with Intel ATX 12V 2.31 & EPS 12V 2.92 standards. Protections: Over Voltage, Under Voltage, Over Power and Short-Circuit. Single +12V rail. Design: Delivery up to 62A on single dedicated 12V rail Modular Cables: Semi-modular all flat all black cable provide low-profile solution for easy cable management Ultra Quiet Fan: 140mm intelligent temperature controlled fan. Solid State Capacitors: Provide great stability at higher operating temperatures, frequencies and currents Circuitry Design: Synchronous rectification with DC-DC converter for extreme performance and high efficiency NVIDIA SLI Ready / ATI Crossfire Ready. Warranty: 5 Years Note: This power supply is an ATX semi-modular power supply which means it has 24 pin motherboard cable and 4+4 pin COY cable connect to the power supply