This project presents a sustainable cooling system using Heusler alloys and the magnetocaloric effect (MCE) to reduce energy consumption and eliminate harmful refrigerants. It incorporates recycled materials, such as nickel from e-waste, for eco-friendliness and cost-effectiveness. Achieving a temperature change of 0.8 K, the system demonstrates reliability, scalability, and potential applications in households and data centers, offering a greener alternative to traditional refrigeration methods.