The NM-AM4 kit allows Noctua users to upgrade their coolers to AMDs AM4 socket (Ryzen). It is backwards compatible with most Noctua coolers since 2005 (see full details on the Noctua website) and has been designed to combine outstanding reliability, optimal contact pressure and easy, straightforward installation. Bringing the trusted SecuFirm2 quality to AMDs AM4 platform, the NM-AM4 is an enthusiast-grade mounting kit that meets the highest demands in safety, performance and ease of use.