FSP Group 500W ATX Power Supply Single 2U Size 80 PLUS Bronze Certified for Rack Mount Case (FSP500-702UH) 80 Plus Bronze Certified Low Ripple & Noise Output over voltage protection Short circuit protection on all outputs Resettable power shut down INTERNAL 4 cm fan 100% burn-in under high ambient temperature (50?) Vacuum-impregnated transformer, MTBF:100K hours at 25?, 100% Hi-pot tested, Line input fuse protection