Server device and cooling apparatus

A server device, comprising:

• a casing, having an accommodating space, at least one liquid inlet and at least one liquid outlet, wherein the accommodating space is configured to accommodate a cooling liquid, and the accommodating space is in fluid communication with the at least one liquid inlet and the at least one liquid outlet;
• at least one flow equalizing plate, detachably located in the accommodating space, wherein the at least one flow equalizing plate divides the accommodating space into an upper subspace and a lower subspace, the at least one flow equalizing plate has a plurality of through holes, the plurality of through holes are in fluid communication with the upper subspace and the lower subspace, the at least one liquid inlet is in fluid communication with the lower subspace, and the at least one liquid outlet is in fluid communication with the upper subspace;
• and
• at least one server, located in the upper subspace, wherein the at least one liquid inlet and the at least one liquid outlet are in fluid communication with the at least one server;
• wherein sizes of the plurality of through holes of the at least one flow equalizing plate are different.