COOLING MODULE AND COOLING MODULE RACK

A cooling module and/or a computing system comprising cooling modules are provided. The computing system may comprise: a server rack for holding computing units at different heights; at least two cooling modules for mounting in the server rack, comprising a first housing enclosing a first computing unit. The two cooling modules may house different types of information technology equipment, but have the same height. The cooling module may containing an electronic device and liquid coolant. It may have one or more of: a sidewall with a reinforcement adaptation; an lower and/or upper wall with a central portion that is close to the opposite wall an internal surface further from its outer surface than in another portion of the internal volume; a separable lid with an overlapping ridge; and a thermally conductive component passing through a sidewall.