Extra Slim heatsink design, Kotetsu 3 would not overhang RAM and PCIe slots giving great compatibility with graphic cards and tall memory modules. Standing 154mm tall, the cooler easily fits most middle tower. Excellent Black tone brushed top cover design with 5th Gen HPMS Lite mounting system, the Kotetsu Mark III adds style to stand out your customized PC with an easy-to-install experience. Standing only 154.5mm tall, the cooler perfectly fits into the most popular tower cases on the market. Quiet 120mm Kaze Flex II fan (Fluid Dynamic Bearing) for high airflow and static pressure with silent operation(PWM, 300-1500RPM). Addition fan clip for adding 2nd fan(optional) as push-pull configuration for maximal performance. HPMS V Lite (Hyper Precision Mounting System 5th Gen Lightweight) is a secure and easy-to-install spring loaded mounting system compatible with socket INTEL LGA 1700 / 1200 / 1151 & AMD AM5 / AM4 / AM3(+) / AM2(+) / FM2(+) / FM1