Noctua NH‑L12Sx77 – 77mm Low Profile CPU Cooler, 6 Heatpipes, NF‑A12x15 PWM Fan

Noctua NH‑L12Sx77 Low Profile CPU Cooler The Noctua NH‑L12Sx77 is a performance‑enhanced, low‑profile CPU cooler designed for compact systems that demand strong cooling in tight spaces. With 6 heatpipes, a 77mm total height, and Noctua’s premium NF‑A12x15 PWM slim 120mm fan, it delivers significantly better thermal performance than the original NH‑L12S — ideal for high‑end CPUs running aggressive boost modes in SFF builds. Thanks to its taller fin stack and redesigned layout, the NH‑L12Sx77 offers improved RAM clearance (44mm), better motherboard compatibility, and optimised airflow direction for cases with top ventilation such as the Fractal Terra, Louqe Raw S1, and SilverStone Milo series. Specifications Brand: Noctua Model: NH‑L12Sx77 Cooler Type: Low‑profile air cooler Height: 77mm Heatpipes: 6 Fan: NF‑A12x15 PWM (120mm slim) Fan Speed: 1850 RPM max (1400 RPM with LNA) Bearing: SSO2 Airflow: Premium slim‑fan performance Noise: Virtually silent at idle Socket Support: Intel: LGA1851, LGA1700, LGA1200, LGA115x AMD: AM5, AM4 RAM Clearance: 44mm (56mm in high‑clearance mode) Thermal Compound: NT‑H2 included Mounting System: SecuFirm2™ multi‑socket Warranty: 6 Years Key Features Performance‑enhanced version of the NH‑L12S Taller 77mm design for improved cooling 6 heat pipes for higher thermal headroom NF‑A12x15 slim 120mm PWM fan 44mm RAM clearance (56mm with fan on top) Exhaust‑up airflow ideal for perforated top panels Perfect fit for Fractal Terra, Louqe Raw S1, SilverStone ML12 Supports 120×25mm fans (height increases to 102mm) AM5 offset mounting option for lower temps NT‑H2 next‑gen thermal paste included Soldered fin‑to‑heatpipe interface for long‑term reliability Most Suitable For Small Form Factor (SFF) PCs Mini‑ITX builds Fractal Terra / Louqe Raw S1 HTPC systems Compact workstations High‑end AM5/Intel CPUs in tight cases