CPU Cooler NOCTUA NH-L9a-AM4:NOCTUA NH-L9a-AM4 is an award-winning low profile NH-L9i cooler designed for the AM4 socket. This product delivers everything you would expect from Noctuas larger coolers in an extra compact package. Thats why its optimal for computers such as ITX, HTPC, or Small Form Factor (SFF) with Ryzen processors.Key Features of the NOCTUA NH-L9a-AM4 CPU CoolerExtra small radiator (height 37mm)Especially made for Ryzen with the AM4 socketCooling power about 65W TDPNF-A9x14 92mm silent fan with automatic PWM speed controlSupplied silencer (from 2500rpm to 1800rpm)Long-lasting (extended warranty)Cooling in Confined SpacesWith a height of just 37mm, this cooler fits perfectly into the most compact cabinets. While larger coolers may overlap the CPU zone, the compact size of the NOCTUA NH-L9a-AM4 ensures that near-by RAM modules, PCIe slots or motherboard connectors will not get in the way. The SecuFirm2 attachment for the AM4 socket greatly simplifies installation.