Liquid cooling system

A liquid cooling system, comprising:

• a plurality of first liquid cooling plates configured to respectively thermally contact a plurality of first heating elements, wherein the plurality of first liquid cooling plates are connected in series and in fluid communication with each other;
• and
• a plurality of liquid cooling modules connected in series and in fluid communication with each other, each of the plurality of liquid cooling modules comprising:
• two divergence parts in fluid communication with the plurality of first liquid cooling plates, each of the two divergence parts having a plurality of divergence holes;
• and
• a plurality of second liquid cooling plates configured to thermally contact a plurality of second heating elements, wherein the plurality of second liquid cooling plates are disposed between the two divergence parts and are in fluid communication with the two divergence parts via the plurality of divergence holes, respectively;
• wherein the plurality of first liquid cooling plates and the plurality of liquid cooling modules are connected in series and in fluid communication with each other.