The Thermalright TL-M12Q X3 120mm PC Case Cooling Fans are designed for maximum rotational speed of 2000 RPM, providing efficient cooling for desktop computers. These daisy-chain fans have a sleek black design and a fan diameter of 120mm, offering an air flow capacity of 68.9 CFM. The fans are made of plastic and operate at a voltage of 12.0, with a noise level of 28.2 dB. With a weight of 1.23 pounds and a compact size, these cooling fans from Thermalright are a reliable choice for maintaining optimal computer performance.