Coolerguys 120mm 120X120X38 High Airflow Waterproof IP67 12v Fan for DesktopENVIRONMENTAL RESISTANCE: IP67 design technology allows this to be completely dustproof and waterproof (rated to be submerged up to 1m for 30min). HIGHER AIRFLOW/LOWER NOISE: Updated blade and motor designs allow this to put out 157 cubic feet per minute with a noise level of 45db. That's equivalent to the ambient noise of nighttime in the suburbs or a standard kitchen fridge. LONG LASTING: Dual ball bearings give a long projected lifespan of up to 67,000 hrs--that's over 7 years. Backed by manufacturer with a 3 year warranty. STANDARD CONNECTOR: Standard 3 pin native connector allows for easy adaptability with many systems. Contact us if you need to determine which is the positive, negative, or tachometer (speed sensor) wires as they're all painted black.