I’ve got a redneck engineering version of this that is arguably better: 4 480x120x45mm radiators mounted on a generic 20 inch box fan - even at the lowest fan speed it has no problem keeping 2 high end PCs (daisy chained) VERY cool and is almost completely silent. I’ve added a frame from $10 worth of aluminium flat from a hardware store and used metal screws to attach extended feet directly to the frame of the fan so it doesn’t fall over - I’ve only used a hacksaw blade and a drill to make it, I’ve lived in a condo at the time and that’s all I’ve had available.