The Gigabyte P650B 650W 80 Plus Bronze Certified Non-Modular Power Supply is a reliable and efficient power supply unit that delivers 85% efficiency at 50% load, ensuring less power waste, less heat, and less fan noise. It is 80 Plus Bronze certified and comes with a 120mm Silent Hydraulic Bearing (HYB) fan that optimizes noise reduction and thermal performance. The fan speed is adjusted according to the automatic power detection, and the Hydraulic Bearing fan provides longer and more stable life time. The PSU has a single +12V rail that provides the best power output, stability, and compatibility for the hardware. It also provides the easiest way to install the power cable and is the best design for overclocking. The PSU has OVP/OPP/SCP/UVP/OCP/OTP protection designs to ensure the entire computer system operates stably under any conditions. The PSU comes with a 3-year warranty