A device for removal of heat from a plurality of heat sources, the device comprising: a first manifold configured to receive a working fluid; a plurality of first elongated intermediate frame members each in thermal communication with at least one of the plurality of heat sources, each first elongated intermediate frame member including a channel in fluid communication with the first manifold and configured to receive the working fluid from the first manifold , wherein each first elongated intermediate frame member includes a slot defined by two spaced apart protrusions extending outwardly from the first elongated intermediate frame member and parallel to one another along a longitudinal axis of the first elongated intermediate frame member ; a second manifold spaced from the first manifold and in fluid communication with the plurality of first elongated intermediate frame members to receive the working fluid from each channel in the plurality of first elongated intermediate frame members , wherein the second manifold is configured to transfer the working fluid away from the plurality of heat sources, wherein the working fluid flows through the first manifold , and a plurality of first thermal conducting devices , wherein each of the first thermal conducting devices is formed as a plate with a first end extending along the longitudinal axis, and wherein the first end is disposed within one of the slots of the first elongated intermediate frame members to position the first thermal conducting device adjacent at least one of the plurality of heat sources , and wherein a second end of the first thermal conducting device opposite the first end is disposed outside of the slot . a first manifold configured to receive a working fluid; a plurality of first elongated intermediate frame members each in thermal communication with at least one of the plurality of heat sources, each first elongated intermediate frame member including a channel in fluid communication with the first manifold and configured to receive the working fluid from the first manifold , wherein each first elongated intermediate frame member includes a slot defined by two spaced apart protrusions extending outwardly from the first elongated intermediate frame member and parallel to one another along a longitudinal axis of the first elongated intermediate frame member ; a second manifold spaced from the first manifold and in fluid communication with the plurality of first elongated intermediate frame members to receive the working fluid from each channel in the plurality of first elongated intermediate frame members , wherein the second manifold is configured to transfer the working fluid away from the plurality of heat sources, wherein the working fluid flows through the first manifold , and a plurality of first thermal conducting devices , wherein each of the first thermal conducting devices is formed as a plate with a first end extending along the longitudinal axis, and wherein the first end is disposed within one of the slots of the first elongated intermediate frame members to position the first thermal conducting device adjacent at least one of the plurality of heat sources , and wherein a second end of the first thermal conducting device opposite the first end is disposed outside of the slot . <EOS>