APC ACF202BLK Rack Side Air Distribution is an accessory by Schneider Electric designed to improve airflow and cooling efficiency by distributing cool air along the side of the rack, likely a variant of ACF201BLK.
APC ACF502 NetShelter SX Roof Fan Tray is a fan tray designed for rack roofs, providing a maximum airflow of 822.9 Gal/min, finished in black, for superior heat extraction.
APC ACF503 Roof Fan Tray is a fan tray designed for rack roofs, delivering 440 CFM of airflow at 120 V, and features a black finish for thermal management.