TP-Link DECO M5 Wi-Fi System Desktop Average routers are designed to send Wi-Fi in all directions but don’t always reach every room. Range extenders improve coverage but create multiple networks for you to navigate. Deco M5 uses several units working together to replace your router and create seamless Wi-Fi in every room. Deco includes three separate features in one device - seamless coverage, antivirus and parental controls. Not only do you get strong Wi-Fi in every room of your home, you also get the most secure whole-home Wi-Fi with HomeCare protecting every device.