Localized hybrid air-water cooling in server cabinets remove heat using a self contained system that does not interact with the room level air cooling system is one approach to more effectively control the cooling when there is wide variation in the amount of dissipation in neighboring racks. This seminar describes an experimental test and CFD validation of a commercial hybrid-cooled enclosed cabinet. The model includes fans and channels and the heat exchanger box and uses experimentally measured flow curves for the IT equipment. A sensitivity study was applied to the validated model to investigate the effect of leakage on cabinets performance.