The Noctua NH-D9L Premium CPU Cooler with NF-A9 92mm Fan is a premium grade dual tower CPU cooler that has been designed to provide excellent quiet cooling performance at a height of only 110mm. Its comparably low profile (15mm lower than classic 9cm tower coolers such as the NH-U9S) doesn’t only guarantee full 3U compliance but also makes the NH-D9L ideal for compact HTPC and Small Form Factor cases that have airflow paths parallel to the mainboard. Thanks to its 95x95mm footprint, the NH-D9L clears the RAM and PCIe slots on all Intel based and most AMD based ITX mainboards. The included NF-A9 premium fan supports automatic speed control via PWM for outstanding quietness of operation and a second, optional NF-A9 fan can be added for further improved performance in dual fan mode. Topped off with the trusted, pro-grade SecuFirm multi-socket mounting system, Noctua’s proven NT-H1 thermal compound and full 6 years manufacturer’s warranty, the NH-D9L forms a highly compact premium package for space-restricted applications. Specifications Key Features Type 92x92x25 Fan Speed Max. rotational speed (+/- 10%) : 2000 RPM Max. rotational speed with L.N.A. (+/- 10%) : 1550 RPM Min. rotational speed (PWM, +/-20%) : 400 RPM Fan Airflow Max. airflow : 78,9 m³/h Max. airflow with L.N.A. : 62,6 m³/h Noise Max. acoustical noise : 22,8 dB(A) Max. acoustical noise with L.N.A.16,3 dB(A) Material Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating Physical Specification Dimension Height (without fan) : 110 mm Width (without fan) : 95 mm Depth (without fan) : 95 mm Height (with fan) : 110 mm Width (with fan) : 95 mm Depth (with fan) : 95 mm Weight Without fan : 428 g With fan : 531 g Supported Sockets Intel LGA2066, LGA2011-0, LGA2011-3, LGA1156, LGA1155, LGA1151, LGA1150 AMD AM2, AM2+, AM3, AM3+, FM1, FM2, FM2+, AM4 Warranty Information Warranty 06 Years Warranty ..