In a computer cabinet, if the internal temperature rises too high crucial components can fail to operate properly. The fan can be compared to the heart of a system; if the fan fails, other components are at risk of failure, leaving the entire system compromised and likely inoperable. A cabinet air flow concept takes in fresh air from the bottom of the unit and forces the cooling air through the cabinet toward the top. A fan tray assembly module contains axial fans for cooling the cabinet power supply modules. The two NMB blowers also generate forced air cooling for the case components inside the telecom cabinet. The fans are positioned properly in the fan tray to force cool air to the power supply unit. Flow concept analysis visualization illustrates how the proper positioning of the fan tray assembly can bring maximum direct cooling to the heat generating components found in a cabinet server unit.