|Socket compatibility||Intel LGA2011-0 & LGA2011-3(Square ILM), LGA1156, LGA1155, LGA1150 & AMD AM2, AM2+, AM3, AM3+, FM1, FM2, FM2+ (backplate required)|
|Height (without fan)||125 mm|
|Width (without fan)||95 mm|
|Depth (without fan)||68 mm|
|Height (with fan)||125 mm|
|Width (with fan)||95 mm|
|Depth (with fan)||95 mm|
|Weight (without fan)||524 g|
|Weight (with fan)||618 g|
|Material||Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating|
|Max. TDP||see TDP guide|
|Scope of Delivery||· Low-Noise Adaptor (L.N.A.)· NT-H1 high-grade thermal compound· SecuFirm2™ Mounting Kit· Fan-clips for second NF-A9· Noctua Metal Case-Badge|
NH-U9S is similar in design to the larger NH-U12S and the NH-U14S, and is the successor to the NH-U9B, SE2 which was introduced in 2008. There are a few changes in the new 92mm cooler, including the increase in the number of heatpipes to five (from four) and a redesigned fin stack arrangement to make it easier to fit into smaller enclosures. The heatpipes boast an asymmetrical design, with three out of the five arranged in the middle, with the other two edging outward. There are 43 aluminium fins in the stack.
Another change is that there is a single fan included with the NH-U9S in a push configuration. There is a provision to install another fan, but Noctua mentions that doing so has performance trade-offs. The design of the cooler means that you can only install an additional fan at the back. With a clearance of 125mm, the NH-U9S is slightly taller than the NH-D9L, but does manage to fit into most mini-ITX enclosures.