NM-i115x Continuing Noctua's tradition of supplying customers with its premium-class SecuFirm2™ mountings free of charge, the NM-i115x kit allows Noctua users to upgrade their coolers to Intel's LGA115x sockets (LGA1150, LGA1155, LGA1156). The NM-i115x set is backwards compatible with most Noctua coolers since 2005* and has been designed to combine outstanding reliability, optimal contact pressure and easy, straightforward installation. Bringing the trusted SecuFirm2™ quality to Intel's LGA115x platform, the NM-i115x is an enthusiast-grade mounting kit that meets the highest demands in safety, performance and ease-of-use.