The FSP850-50FGPH3 is an 850-Watt industrial level switching power supply. It features a PMBus communication port and active PFC (Power Factor Correction) in addition to a full range of input and output voltages. This power supply is ideal for servers, workstations, communications applications and many other automated services. The FSP850-50FGPH3 also complies with the latest safety and EMC regulations making it a viable product in virtually any global market. -Internal 4 cm exhaust fan for noise reduction -Support OCP, OTP and OVP circuit protection -Short circuit protection on all outputs -Resettable power shut down 100% Hi-pot tested -MTBF:100K hours at 25 -100% burn-in under high ambient temperature (50) Internal 4 cm exhaust fan for noise reduction Support OCP, OTP, and OVP circuit protection Short circuit protection on all outputs Resettable power shut down 100% Hi-pot tested MTBF:100K hours at 25 100% burn-in under high ambient temperature (50) ,Mini ITX Solution By FSP Group/Flex ATX 850W 92% Efficiency PMBus Full Range AC Input Power Supply with Internal 4 cm exhaust fan for noise reduction, features a PMBus communication port and active PFC (FSP850-50FGPH3)