Keep your router running smoothly with this efficient USB cooling fan system. The set includes four interconnected fans, each measuring 2.8 x 2.8 x 0.6 inches, designed to provide effective heat dissipation for optimal network performance. Built with durable ABS material, these fans offer a reliable cooling solution for your networking equipment. The system features a user-friendly 5V USB power supply, making it easy to connect to your router or a power bank. for limited spaces, these compact fans are specifically compatible with RTAC5300, R7900, and R8000. The complete package includes four cooling fans connected in a single string and comes with four removable protective films. Whether you're gaming, streaming, or handling heavy internet traffic, these cooling fans help maintain stable performance by preventing overheating. The practical design and precise make it an ideal addition to your home networking setup.