When rack density climbs, heat has to go somewhere. The APC ACF600 NetShelter Rack Fan Panel gives enclosed racks a direct path for moving warm air out of the cabinet, with 135 CFM of airflow in a 2U form factor. It is a practical choice for teams that need targeted cooling without redesigning the room or overcommitting to larger thermal infrastructure. The value is in the fit and the focus. At 19 inches wide and 2U high, the fan tray is sized for standard rack integration, while 120 V input keeps power planning straightforward. For network closets, edge rooms, and production enclosures, that combination helps maintain more stable operating temperatures around active equipment. Compared with generic cooling add-ons, this tray is built for the NetShelter environment and backed by APC’s enclosure ecosystem. That matters when the goal is not just airflow, but predictable airflow that supports serviceability, equipment protection, and long-term rack consistency.