PCCooler KN850 (P3-KN850-G1F)

The KN850 (P3-KN850-G1F) is an ATX form factor power supply with a total output of 850 W and support for the ATX12V 3.1 standard. The main load is distributed across the +12V rail, which delivers up to 840 W, while the +3.3V and +5V rails combined provide up to 100 W. Individual rail specifications include +12V1 up to 70 W, +5V 20 W, +3.3V 20 W, -12V 0.3 W, and +5Vsb 3 W. The unit features active power factor correction (APFC) and operates across an input voltage range of 100–240 V. The modular design allows cables to be connected as needed, including a 24-pin motherboard connector, two 4+4 pin CPU connectors, one 16-pin 12VHPWR/12V-2x6 connector for graphics cards, three 6+2 pin/8 pin connectors for discrete GPUs, two Molex connectors, and seven SATA connectors for storage drives and peripherals. Protection features include OPP, OTP, OVP, OCP, SCP, and UVP to monitor overpower, overtemperature, overvoltage, overcurrent, short circuit, and undervoltage conditions. Cooling is provided by a 120 mm fan with semi-passive operation that allows the fan to stop rotating under low load conditions. The power supply measures 140x150x86 mm and features a black color finish with braided cables. It carries an 80 PLUS Gold certification with a rated efficiency of 92%. The KN850 (P3-KN850-G1F) is designed for systems with discrete graphics cards and multi-component peripherals where power distribution across multiple rails and dedicated connection channels for different device types are required.