The Noctua NH-C14 brings top flow cooling to a new level by offering an exquisite, uniquely flexible single or dual fan setup! The two supplied NF-P14 pressure orientated fans can be installed on top and underneath the fin stack to configure the cooler for maximum performance in dual fan mode and either lower profile or maximum component clearance with a single fan installed, either on the top or bottom of the NH-C14's heatsink fins. This pack includes an uber dual fan setup consisting of twin award winning NF-P14 (140mm) pressure orientated fans, featuring Vortex Control Notches, SCD technology and SSO Bearings in order to achieve a perfect balance of performance and quietness. You can also opt to install other separately purchased lower or higher profile fans on either the top or the underside of the heatsinks fin stack in either 120 or 140mm sizes, giving you every possible configuration option. Should you not wish to use the included NF-P14 fans on the NH-C14 heatsink, they'll not go to waste, as they're also some of the best chassis cooling fans around! With a height of only 130mm with both included NF-P14 fans installed and a heatsink designed to provide greater surface area, better heat distribution and a pair of fans offering superior airflow efficiency than any other solution on the market, the Noctua NH-C14 provides users with the perfect enthusiast level CPU cooler combination that offers high performance, low noise cooling, along with maximum chassis and memory configuration compatibility. Noctua?s enthusiast grade SecuFirm2 multisocket mounting provides broad socket compatibility including Intel sockets LGA1366, LGA1156, LGA775 and AMD sockets AM2, AM2+ & AM3 and also meets the highest demands in safety, contact pressure and ease of use. It is a complete, quiet, all in one and easy to install cooling solution for modern high powered personal computers.