Three operating modes to fit common home and office networking needs Computer WiFi Adapter How it works: The USB power head powers the device. It can connect to the computer via an RJ45 Ethernet cable. After setup on the PC, it functions as a wifi adapter to receive the wifi signal from the router. No CD driver is required. Key benefits: Brings wireless connectivity to a desktop or device without builtin wifi; simple setup that does not require a driver CD; uses existing router signal. TV / Smart TV Adapter How it works: Set up directly on a computer to connect with the wifi router, then it can be used with any smart TV. Key benefits: Enables wireless network access for TVs and streaming devices without separate network hardware; broad compatibility with smart TVs. Wifi Repeater How it works: In repeater mode, powered by USB, no external AC adapter is needed. Key benefits: Extends wireless coverage without additional power outlets or adapters; convenient for areas with weak wifi signal. Use scenarios Desktop upgrade: A desktop PC without builtin wifi can gain wireless network access by connecting via RJ45 to the device, powered by USB, after PC setup, to receive signals from the router without installing CD drivers. TV streaming enhancement: Configure the device on a computer to connect to the home wifi router, then use it to provide wireless network access to a smart TV for streaming. Home coverage extension: Place the device in a location with weak wifi and use it in repeater mode to extend the network, powered solely by USB. Key attributes Function: Multimode wireless device with computer wifi adapter, TV adapter, and wifi repeater capabilities. Compatibility: Designed to connect to wifi routers and work with devices that require wireless access, no CD driver required. Power: USB powered for convenient operation without a separate power supply. Connectivity: RJ45 Ethernet connection for PC setup and routing considerations. Physical details: The description emphasizes USB power and RJ45 connectivity; specific size and material are not provided.