The NZXT 120mm Black Case Fans are a set of four high-quality computer case fans designed for maximum airflow and cooling. With a maximum airflow volume of 50.4 CFM and a maximum fan speed of 1200 RPM, these fans are perfect for keeping your computer running smoothly. The fans feature a fluid bearing design for low noise and long durability, and are crafted from durable plastic material. With a sleek black color and a 120mm diameter, these NZXT case fans are a stylish and effective choice for any computer setup.