Evo, radi se o Thermaltake Thunderblade 120mm LED Fan ventilatoru
...i evo te stvari koja mi nije jasna: Intelligent wire management: green wire sleeving
About RPM signal wire:
1. Connect the yellow wire to the motherboard's fan connector to monitor fan speed. or
2. Leave the yellow wire. or
3. Connect the yellow wire to fan controller to read fan speed.
Više o tome na:
http://www.xoxide.com/thunderblade4.html
Hvala!