A rack system for housing an electronic device comprising: an immersion case configured to provide housing to the electronic device, and to receive an immersion cooling liquid, wherein the immersion case includes a drainage opening, wherein the drainage opening is configured to remove at least a part of the immersion cooling liquid from the immersion case, based on a user actuated action, during a de-racking operation of the immersion case; and a rack frame configured to slidably accommodate racking and de-racking operations of the immersion case.