This features a pair of Corsair 120mm 4-pin PWM case fans. These fans are designed to provide optimal cooling for your server components while operating quietly. The fans are easy to install and come with all the necessary connectors. The bearings used are high-quality sleeves, ensuring a long lifespan for the fans. The model number for these fans is 31-003606. Don't miss out on the opportunity to upgrade your server cooling with these top-of-the-line fans!