SeaSonic SS-500L1U 500W Single Server Power Supply - 80PLUS Gold Type: EPS12V Output: +3.3V@20A, +5V@20A, +12V Combined@40A, -12V@0.3A, +5Vsb@2.5A Input Frequency Range: 47 - 63 Hz MTBF: >100,000 Hours Efficiency: > 87% Protection: Short circuit protection on all outputs Over voltage protection Over power protection Dimensions: L235 x W100 x H40mm (9.3 x 3.9 x 1.6)