Each of the two ends curves in so that they "bite" and hold themselves firm on the outer edges of your memory.  At first I was a little nervous about something with moving parts not being screwed down but the amount of grip here is very comforting.  You will shake expansion cards loose before this puppy gives way.

Here is CoolIT's RAM Fan mounted in place.  It can be installed so that the angle of the fan directs air to either side of the memory as you see fit.  This is beneficial as that it creates an air flow across mainboard components that may also benefit from some air circulation which enhances overall system stability.

The other good point about being able to install the RAM Fan to bend one way or the other is that it gives you options in the case of a tightly packed system.  Below is a shot from my LAN box with a Thermaltake Mini Typhoon on a Foxconn C51XEM2AA AM2 mainboard.  Here, there is no way the RAM Fan is going to fit blowing towards the CPU, flipping it over makes the headache go away.  Versatile mounting is always a plus.

Blow me

Under power, I was surprised to see that the RAM Fan also sports two blue LED lights.  This came in handy as a visual cue I'll get to in a second.  The CoolIT RAM Fan's fan is a 60mm fan as we already noted.  As you old timers may remember, 60mm fans are generally louder than their 80 and 120mm siblings.  The RAM Fan's fan was no different.  As a matter of fact, it was by far the loudest component in our test bed.  This was mitigated a bit in our testing by our test bed's mainboard having adjustable voltage to the fan headers.  Turning the power down to the three pin header that the RAM Fan was connected to, gave us decidedly quieter operation and the subtle visual cue of the dimming of its LEDs.

Performance