The D-Link DSM-604H is a wireless router designed for small businesses. It features 802.11n wireless technology with speeds up to 300Mbps, four LAN ports, and a WAN port. The router also includes advanced security features such as WPA/WPA2 encryption, a SPI firewall, and VPN support. The DSM-604H also has Quality of Service (QoS) capabilities, allowing users to prioritize network traffic. Additionally, it includes a web-based management interface for easy setup and configuration.

The DSM-604H is a router manufactured by the company D-Link 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 , 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 and . 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.