Very quiet fan with lots of accessories

I have after some searching bought this fan as a substitute for a much too noisy case fans in a mini PC. The fan comes with lots of accessories:
Slikonzapfen for screwless mounting with good damping properties
Screw material, if you decide not to tighten the fan
different connection cables and adapters
Installation is problem-free. The connecting cable is a three-pole cable with corresponding plug. There is an adapter cable with two pin connectors. In addition, an extension cord and a "noise reduction cord" that limits the fan speed, according to the manufacturer to 950 rpm.
I have these fans used as case fans with a passively cooled board (Zotac merger with AMD E450). The fan power is sufficient even with the speed limitation, and it is practically inaudible. The five stars are earned.