The Thermaltake Pure 20 Chilling Effect 200x200x30mm Cooling Fan is a high-quality case fan designed for cooling computer systems. With a fan diameter of 30mm and a sleeve bearing type, this fan provides efficient and quiet cooling performance. It operates at 12V with a 3-pin power connection and features a sleek black color and plastic material construction. Packaged in a blister pack, this fan is perfect for those looking to enhance the cooling system of their computer setup.