RTL8188 Mini USB Wi-Fi Dongle 150Mbps Wireless-N Adapter

Yes, the RTL8188 dongle is compatible with Raspberry Pi 4 and other models. You will need to connect it via a USB port. For Raspberry Pi OS, the RTL8188CUS chipset is typically supported by default drivers. If not automatically recognized, you may need to install the appropriate firmware package via the terminal (e.g., sudo apt install firmware-Realtek). Ensure your power supply is adequate, as the dongle draws power from the Pi's USB bus.

To connect via WPS, first ensure your wireless router supports WPS and has the function enabled. Press the WPS (QSS) button on your router. Within two minutes, press the physical QSS button on the side of the RTL8188 dongle. The adapter will automatically negotiate a secure connection using WPA2 encryption. This method bypasses the need to manually enter a Wi-Fi password. If the connection fails, you can fall back to manually selecting your network and entering the password in your operating system's network settings.

The dongle supports a wide range of operating systems, including legacy and modern versions. This includes Windows 2000, XP, Vista, 7, various distributions of Linux (where drivers are often included in the kernel), and macOS. For Windows, you may need to use the built-in driver or download a specific one from Realtek's website. For Linux, compatibility is generally plug-and-play on major distributions like Ubuntu. Always check for the latest chipset drivers from the manufacturer for optimal performance.