Realtek does not host end-user drivers on its main website for this chip. Instead, they are distributed via OEMs (Original Equipment Manufacturers). Here is the safest way to find them:
Auto Installation Program (8188GU) with a version number like 1030.38.712.2019 or newer.setup.exe. If you see a Windows Defender warning about "Unknown publisher," click "Install anyway."Kernel Status: Not included in mainline kernel (unlike RTL8188EU). Requires external compilation. realtek 8188gu wireless lan 802.11n usb nic driver
As of Windows 10 20H2 and Windows 11 22H2, Microsoft has integrated a basic 8188GU driver via Windows Update. Realtek does not host end-user drivers on its
The short answer: Only if you already own it. Download the correct driver: Use a reputable driver
The Realtek 8188GU is a legacy chip. It uses the overcrowded 2.4GHz band, caps at 150Mbps, and lacks WPA3 support. Modern entry-level adapters (Wi-Fi 5 AC600 or Wi-Fi 6 AX1800) cost only $10-$15 and offer 5GHz support, better drivers, and dual-band connectivity.
iwconfig # Should show wlan0