The NH-L9a-AM4 chromax.black is a completely black version of Noctua's award-winning low-profile cooler NH-L9a-AM4, designed for AMD Ryzen-based HTPCs and small form factor systems. The recipe for success remains unchanged thanks to the same super-flat heatsink and the proven NF-A9x14 PWM premium fan: strong cooling performance and excellent quiet operation at a height of just 37 mm, combined with RAM and PCIe compatibility. The chromax.black version, with its black fan and black-coated heatsink, also combines these advantages with a sleek stealth design. Completing this high-quality overall package is the renowned SecuFirm2 mounting system for AMD AM4 and Noctua's popular NT-H1 thermal paste.
| Socket | AM4 | 
| Height (with fan) | 37 mm | 
| Diameter | 92 mm | 
| Number of fans | 1 x | 
| Airflow | 57.50 m³/h | 
| power connector | 4-pin PWM | 
| Documents | |
| Item number | 12663405 | 
| Manufacturer | Noctua | 
| Category | CPU coolers | 
| Manufacturer no. | NH-L9a-AM4 CH.BK | 
| Release date | 5-2-2020 | 
| Colour | Black | 
| Exact colour description | Black | 
| CPU cooler design | Top Blower | 
| Fan type | Top-Down Cooler | 
| Socket | AM4 | 
| Cooler mounting | Screw | 
| Supported fan sizes | 92mm | 
| Number of heatpipes | 2 | 
| Materials radiator core | Aluminium | 
| Material cooling fins | Copper | 
| Diameter | 92 mm | 
| Number of fans | 1 x | 
| Max. Speed | 2500 RPM | 
| Airflow | 57.50 m³/h | 
| Max. noise level | 23.60 dB | 
| LED colour | without LED | 
| Fan bearing type | SSO2 | 
| power connector | 4-pin PWM | 
| Power consumption | 2.52 W | 
| Voltage | 12 V | 
| Scope of delivery | Black coated NH-L9a-AM4 heat sink, NF-A9 | 
| Country of origin | China | 
| CO₂-Emission | |
| Climate contribution | 
| Width (with fan) | 95 mm | 
| Length (with fan) | 95 mm | 
| Height (with fan) | 37 mm | 
| Weight | 380 g | 
| Length | 21.50 cm | 
| Width | 15.20 cm | 
| Height | 5.70 cm | 
| Weight | 774 g | 
| Product Safety | 
How often does a product of this brand in the «CPU coolers» category have a defect within the first 24 months?
Source: GalaxusHow many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: GalaxusHow often is a product of this brand in the «CPU coolers» category returned?
Source: Galaxus