1. A system for cooling and shielding a computing system comprising:a plurality of cooling channels arranged in an array, each cooling channel having a length, a width, and a height; and
a plurality of inserts for shielding interference over a frequency range, wherein each insert:
is arranged in a cooling channel of the plurality of cooling channels,
comprises a thickness less than or equal to one order of magnitude smaller than the width of the respective cooling channel,
comprises a profile shape having an amplitude less than or equal to the width of the respective cooling channel, and
comprises an insert length oriented along the length of the cooling channel.