NH-L12Sx77

77mm height low-profile cooler

Performance-enhanced low-profile cooling

77mm total height, powerful yet compact

Slim NF-A12x15 120mm fan

With PWM support and Low-Noise Adaptor

SecuFirm2™ mounting system

Synonymous with quality, safety and easy installation

The NH-L12Sx77 is a slightly taller variant of the award-winning NH-L12S, offering improved cooling performance as well as enhanced motherboard and RAM compatibility. With six instead of four heatpipes, it provides additional thermal headroom while maintaining the same default fan setup with the fan installed below the fin stack blowing upwards, which not only guarantees optimal acoustics in situations with perforated case panels right above the cooler, but also helps to exhaust hot air from the case. Due to the increased height, clearance for tall motherboard heatsinks or RAM modules could be improved significantly, yet at a height of 77mm, the NH-L12Sx77 is still compact enough to fit popular Small Form Factor (SFF/SFX) cases such as the Fractal Design Terra, Silverstone Milo ML12 or Louqe Raw S1. Topped off with the renowned SecuFirm2™ mounting system, Noctua’s award-winning NT-H2 thermal compound and a 6-year manufacturer’s warranty, the NH-L12Sx77 is the perfect choice for SFF builds that require strong cooling performance but cannot fit the larger NH-C14S or NH-D9L.



Key features

Better performance, better compatibility

The NH-L12Sx77 not only improves performance but also motherboard and RAM compatibility versus the original NH-L12S: Due to the x77 version’s taller construction, clearance for RAM modules as well as motherboard heatsinks and shrouds could be increased significantly, which makes the cooler an easy fit in most configurations.

High clearance mode

Run with the NF-A12x15 fan installed on top, the NH-L12Sx77 provides extended clearance underneath the fin stack. This way, it is fully compatible with chipset coolers and RAM modules with up to 56mm in height (compared to 44mm in the default configuration with the fan installed underneath the fin stack).

NF-A12x15 slim 120mm premium fan

Featuring sophisticated aerodynamic optimisations such as Flow Acceleration Channels, the NF-A12x15 is a premium-grade slim 120mm fan. Its outstanding efficiency enables the NH-L12Sx77 to combine excellent cooling performance with superb quietness of operation.

NT-H2 next-gen thermal compound

For high-end builds in compact cases, every degree counts. This is why the NH-L12Sx77 includes a tube of Noctua’s next-generation NT-H2 compound that provides even better performance than the award-winning NT-H1, allowing you to achieve the best possible cooling results.

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