Montech Beta 550 550W 80 Plus Bronze Certified Power Supply The Montech Beta 550 Bronze is a 550W power supply that has been certified with 80 PLUS Bronze efficiency. It uses high-quality components, including Japanese main industrial-level electronic capacitors, to ensure stable wattage output and reliable performance. The power supply is also optimized to work with all generations of Intel and AMD processors to maximize energy saving. The power supply has an ATX12V version of the form factor, and its power factor correction (PFC) is active PFC (>0.9 typical). The input voltage can range from 100-240Vac, and the input current is 8A. The power supply's fan size is 120mm, which helps to keep the system cool while also remaining silent. The hold-up time is 10 msec (minimum) at 80% of full load at 230Vac input, which means that it can handle high power demands without interruption. The Montech Beta 550 Bronze power supply has an efficiency of 83% typically, which means it is very energy efficient. Its MTBF (mean time between failures) is over 100,000 hours, indicating that it is built to last. The operating temperature range for this power supply is 0-45°C, and it comes with OVP, OPP, UVP, and SCP protections. The regulatory certifications for this power supply include cTUVus, TUV, CB, CE, CCC, RoHS, and FCC. It has several connectors, including one M/B 20+4Pin, one CPU 4+4Pin, two PCIE 6+2, six SATA, and two Molex 4Pin connectors. These connectors allow you to power your system's motherboard, CPU, graphics card, storage devices, and other peripherals. Overall, the Montech Beta 550 Bronze is an affordable, reliable, and efficient power supply for your computer system.