Gelid Silent 8 Tc 80Mm Tc Fan-2000 Rpm Max 10-21.5 Dba ultra quiet PC case fan. The GELID Solutions Silent 8TC is called SILENT for a reason! This fan has modes that go down to nearly no noise at all. The FN-TX08-20 80mm Case Fan is thermally controlled for those that don't have a PWM motherboard connector through it's built-in Temperature Control & external Sensor. Silent Operation w/ Rubber Fan Mounts, which further dampen vibrations. The Optimized Fan Blades maximize airflow even at low spin rates. High Airflow & High Static Pressure. Long Lifetime (50'000 h MTTF at 40°C). Safety Approvals: CE, RoHS Compliant. Easy to install and a great price.