SeaSonic SS-500L2U 500W Single 2U Server Power Supply - 80PLUS Gold Type: EPS12V Output: +3.3V@20A, +5V@20A, +12V@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: L245 x W100 x H70mm (9.6 x 3.9 x 2.8)