Noctua has once again made a product with considerable thought and care. The NH-U9S fills that gab between the low performance stock coolers from both Intel and AMD, and provides something that can dissipate a large volume of heat within small confinement. I often run into this problem when reviewing chassis, where I find it to be great, but lack the height to install a decent size aftermarket cooler. This is where Noctua comes in! While All-In-One (AIO) coolers are great, it doesn't always fit within the users build preference or budget. It's also true that not every consumer wants to overclock, but do like the idea of lower temperatures compared to stock coolers. The NH-U9S fits perfectly within the socket specifications for Intel or AMD. This is great for small form factors like ITX or M-ATX motherboards.