The issue I always run into when building an HTPC based on a mini-ITX motherboard is maintaining proper cooling with limited space. Solutions were few and far in-between until now. Noctua joins this market segment with a cooling solution called the new Noctua NH-L9.
The Noctua NH-L9i and NH-L9a (i= Intel & a=AMD) are designed to utilize as much space as it can to cool your CPU/APU without obstructing memory or PCIe cards. The complete solution fan and heatsink is a mere 37 mm tall. This is small enough to work with nearly any SFF case.
The NH-L9 comes with a NF-A9x14 PWM fan operating normally at 2500 rpm. This might seem high for both a 140 mm fan and Noctua in particular but this is needed when you consider the intended use. If you have better air circulation, the included Low-Noise Adapter brings the fan speed down to 1800 rpm.
Always one to go the extra mile, Noctua also simplified the design to ensure the cooler is easy to install but still very secure. The $47.90 USD MSRP is a high, but attractive price point. It is a bit more expensive than other coolers in the same vein; however, I expect its performance to be much higher following the trend of all Noctua coolers.