Cool Down Your Hot Modem or Router Works extremely well to cool down modem or router! Quiet, yet works amazingly well! Expands to fit most modems or routers! New, in excellent condition. Sells for $23, so it's a great deal! Dr. Cool Evercool will effectively dissipate the heat from your router, modem, portable hard disks, tablet, PCs, Netbooks, and other computer accessories. Cools with a nice airflow. It also helps prevent damage caused by heat by long periods of operation, and will extend the router or modem life expectancy, helps with network stability. Has a multi-clip design to attach, making it very easy for any user to just put on modem or router.