Heat sink with condensing fins and phase change material

The heat sink with condensing fins and phase change material is formed from a thermally conductive housing, an internal chamber, and a body of liquid phase change material. The thermally conductive housing has a first wall and an opposed second wall and forms an internal chamber. The first wall of the thermally conductive housing is adapted to be in direct contact with one or more heat sources. The body of liquid phase change material is disposed within the internal chamber. The second wall of the thermally conductive housing is adapted to form a plurality of condensing fins. The plurality of condensing fins may contain at least one high thermal conductivity rod. In some embodiments, a high thermal conductivity medium, such as gallium, is disposed within the internal chamber in direct contact with the first wall of the thermally conductive housing.