Cryorig, a relatively young company, quickly became famous for its efficient and innovative products in the field of CPU cooling. The team of experienced radiator and OC experts rely on high-quality materials and innovative combinations of individual components to get the most out of air coolers and CPU coolers. AM4 Expansion Kit for:Cryorig M9aCryorig C1Cryorig H5 UltimateFor their popular CPU coolers, Cryorig provides expansion kits for AMD\'s new AM4 sockets. This variant is suitable for installation of the CPU tower cooler Cryorig M9a, the low-profile CPU cooler Cryorig C1 and the CPU tower cooler Cryorig H5 Ultimate.