The Asus RT-AC87U is a dual-band wireless router with four external antennas and four Gigabit Ethernet ports. It has a maximum theoretical speed of 1.73 Gbps on the 5 GHz band and 600 Mbps on the 2.4 GHz band, making it suitable for high-bandwidth activities such as streaming 4K videos and online gaming. It features advanced security features and parental controls, as well as support for VPN and guest networks. The router also has USB 2.0 and USB 3.0 ports for file sharing and printer connectivity.

The RT-AC87U is a router manufactured by the company Asus that allows multiple devices to connect to a network and communicate with each other. It works by receiving data packets from devices and forwarding them to their intended destination. The router is assigned a unique IP address 192.168.1.1, which serves as its identifier on the network.

To access the router's settings and configure its functions, users can log in using a web browser and their admin and admin. Once logged in, users can customize various settings such as network name, password, and security protocols. They can also set up parental controls, prioritize bandwidth usage, and monitor network activity.