This Delta Electronics DC Brushless Fan Model AFB0712HHB DC 12v O.45A -4E50 4 Wire is a high-quality, universal fan suitable for various devices. Its 55mm diameter, sleeve bearing type, and 1800 RPM maximum fan speed ensure maximum airflow volume of up to 30 CFM, making it perfect for GPU RAM and RAM cooling in a variety of systems. The fan's black color and 4-pin power connection complement its sleek design, while the plastic material ensures durability.