The NM-AM5-L9aL9i is a SecuFirm2 mounting upgrade kit that allows Noctua NH-L9a, NH-L9a-AM4 and NH-L9i CPU coolers (see detailed compatibility information) to be upgraded to AMDs AM5 platform. True to the SecuFirm2 tradition, it combines outstanding reliability, optimal contact pressure and easy, straightforward installation in order to enable Noctua users to continue using their heatsinks on AMDs latest Ryzen processors.