Learn more about Silverstone SST-AP183ModelBrandSilverStoneSeriesAP SeriesModelSST-AP183DetailsTypeCase FanCompatibilityCaseFan Size180 mmBearing TypeDual Ball BearingRPM400 - 1,500 RPMAir Flow24.49 CFM (400 RPM) / 140.13 CFM (1,500 RPM)Noise Level18 dBA (400 RPM) - 37 dBA (1,500 RPM)Power Connector4pin PWMColorBlackFeaturesFeaturesIndustry leading air channeling fanWide fan blade design for high air pressure and optimal system cooling performanceEffective targeted airflow with integrated Air Penetrator grilleWide 400rpm - 1,500rpm speed range via PWM controlLow power consumptionDual ball bearing for long lifetimeDimensions & WeightDimensions180 x 180 x 32 mmShippingEnjoy fast and reliable shipping when you buy your products from Newegg. Our ordering and shipping services are among the best in the industry due to short processing times and a variety of shipping methods. Your orders are packaged at one of the many local warehouses across the country, minimizing delivery times and ensuring you get your purchases as soon as possible.PaymentsNewegg has partnered with PayPal to offer you the very best in payment services. PayPal allows you to buy with confidence, knowing your payments are processed quickly and securely with state-of-the-art encryption technology.ReturnReturns are subject to restocking fees of 15% - 30% of the purchase price and return shipping fees. For products that are eligible for return for replacement, the return shipping labels are free for returns for replacement of the same item within the applicable return policy period. Newegg does NOT charge for restocking fees or return shipping labels for returns of defective products, or if you received the wrong product, the product did not match what was shown on the Site, or we made some other shipping error, provided the item is returned within its return policy period, and in accordance with the Return Policy. For international buyers, items shipped internationally do not qualify for manufacturer warranties.