Examples described herein relate to a cold plate. In some examples, the cold plate includes a surface with fins and at least two channels, wherein a first channel is shaped with a first opening extending towards the surface, a second opening proximate and across a first fin attached to the surface, and a third opening from the surface and extending away from the surface. In some examples, when a fluid is provided to the first opening, the first opening directs the fluid towards the surface, the second opening directs the fluid across the first fin, and the third opening directs the fluid away from the surface. In some examples, the second opening comprises split openings around opposite sides of the first fin.