Learn more about Cooler Master Q300LV3-KGNN-S00ModelBrandCooler CasesColorBlackCase MaterialSGCC + TG / MeshMotherboard CompatibilityMicro ATX / Mini ITXDust FiltersBottom / Front / TopExpansionInternal 3.5" Drive Bays1Internal 2.5" Drive Bays2Expansion Slots4Front Panel PortsFront Ports2 x USB 3.2 Gen1 Type-A1 x USB 3.2 Gen 2x2 Type-C1 x 3.5 Mic / Audio Combo Jack x1Cooling SystemFan OptionsBottom - 1 x 120mm / Bottom - 1 x 140mm / Front - 2 x 120mm / Front - 2 x 140mm / Rear - 1 x 120mm / Rear - 1 x 140mm / Top - 2 x 120mm / Top - 2 x 140mmPre-installed FansRear - 1 x 140mmRadiator OptionsFront - Up to 120mm / Front - Up to 240mm / Rear - Up to 120mm / Top - Up to 120mm / Top - Up to 240mmDimensions & WeightMax GPU Length366 mmMax CPU Cooler Height178 mmMax PSU Length200mm (without bottom fan installed)140mm (with bottom fan installed)Dimensions386.1 x 230 x 429.4 mm |15.2 x 9.1 x 16.9Weight4.5kgAdditional InformationFirst Listed on NeweggSeptember 21, 2026ShippingEnjoy 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.