The Delta Electronics Cooling Fan BUB1012DD-DD2D is a 12V, 0.60A Blower designed specifically for the HP AIO 22-2 21-2 model. With a fan diameter of 50mm and a 4-pin power connection, this fan is suitable for cooling computer systems effectively. Made of black plastic and manufactured in China, this cooling fan is compatible with HP devices, ensuring optimal performance and efficiency for your computer setup.