A power distribution unit with oscilloscope function

A power distribution unit (PDU, 200) for controlling power distribution to computers in a data center typically comprises at least one power inlet (IN, 201), a plurality of power outlets (OUT, 211, 212, 213, 214, 215, 216, 217, 218) for providing power to the computers, and means (203, 221, 222, 223, 224, 225, 226, 227, 228) for measuring at least one parameter. The power distribution unit (PDU, 200) according to the invention further comprises means (233, 234) enabling graphical representation (301, 304) of the at least one parameter in time domain and/or frequency domain.