Schneider Electric has introduced a system for cooling individual server racks in remote and edge locations that aren’t well suited for traditional data-center cooling schemes.
Uniflair Rack Mounted Cooling is a split system consisting of the air conditioning unit that goes in the cabinet and a fan that vents hot air from the cabinet to the outside. The external unit can be up to 20 meters away and up to five meters above or below the cooling unit.
The 5U, Freon-based air-conditioner unit blows cool air up the front of the cabinet where it is sucked into the servers by their front fans and absorbs heat generated by the servers. The hot air is expelled out the back and drawn down, cooled, and recirculated upwards.
Thanks to Andy Patrizio (see source)