Mounting upgrade kit for Noctua CPU coolers with 83mm mounting pitch (see detailed compatibility information on Noctua website) Enables the installation of compatible Noctua CPU coolers on AMDs AM5 and AM4 sockets for Ryzen 5, Ryzen 7 and Ryzen 9 processors Tailor-made for AM5/AM4, uses the motherboards stock AMD backplate for installation Outstanding reliability, optimal contact pressure and easy, straightforward installation Renowned SecuFirm2 quality