The TPE coating and rubber mounting pins make for an ultra quiet fan with a maximum noise level of only 27.8dBA. The pins help reduce vibrations compared to the conventional mounting hardware as the fan spins at the rated speed of 1500rpm. They also make the installation of this fan completely tool-free. Additionally, the sleeved power cable makes managing those pesky wires a breeze and will provide a very clean look for your case..



Link: OCC