Selling an old Noctua NH-D14 that I had been shoehorning into a 4U case to cool a Xeon but finally switched to a smaller cooler so I stopped cutting my fingers every time I was working in the case (and to be clear, the NH-D14 does NOT fit in a 4U case). Tried to clean up the heatsink a bit and it would definitely benefit from a deeper cleaning of the fins, but otherwise the fans and heatsink are all completely functional.