Accessories and Documentation
The hardware and goodies included are seen here. You get a set of four longer screws for if you want to use a 25mm thick fan instead. You also get the L.N.A. adapter, a tube of NT-H1, four screws with nylon washers on them to mount the cooler, and the metal Noctua case badge.
Unfolding the paperwork that was tucked into the back of the lid in the box, you can see there are only four steps to installing the NH-L9i. Add some TIM to the CPU, place the cooler, insert the screws and tighten them down, then plug in the fan; it really doesn't get much easier.
I also wanted to show off the NF-A9x14 PWM fan. Since my last look at fans like these, I see the isolation rubber near the screw holes is much smaller, but other features of the fan stay the same.
Not only the blade shape and amount make for a good fan and Noctua knows this. This is why they engineered step downs on the intake edge of the fan, use the micro-dimples inside the fan frame to disturb the air, and even adding angled grooves in the blades lead to more air speed, pressure, and with less noise.