The TP-LINK AC 1900 Deco MESH WiFi S4R is a white single unit router designed to provide high-speed Wi-Fi connectivity for your home network. With a maximum wireless data rate of 1900 Mbps and mesh WiFi features, this unit offers reliable and seamless networking for your devices. It has three LAN ports and can be connected to a PC for easy setup and configuration. Its compact dimensions of 16.3cm x 9cm x 9cm make it easy to install in any room, while the TP-LINK brand ensures quality and performance.