Realtek 8188GU Wireless LAN 802.11n USB NIC is a low-cost, ultra-compact wireless adapter designed to provide basic Wi-Fi connectivity for legacy systems or single-board computers like the Raspberry Pi. While it offers an affordable way to add wireless capability, its performance is strictly limited to the 2.4GHz band and it often suffers from driver stability issues on modern operating systems. Key Specifications & Performance Speed & Frequency : Supports the standard with theoretical speeds up to
USB\VID_0BDA&PID_F179 (This is the most common ID for 8188GU)Do not buy a 8188GU-based adapter in 2025. Instead: realtek 8188gu wireless lan 80211n usb nic driver
Better solution: Buy a $15 Atheros AR9271 USB dongle instead. Realtek 8188GU Wireless LAN 802
However, the experience of using a Realtek 8188GU adapter is often defined not by the hardware itself, but by its software driver. A missing, outdated, or incorrectly installed Realtek 8188GU Wireless LAN 802.11n USB NIC driver can turn a promising high-speed adapter into a source of constant frustration—random disconnects, slow speeds, or complete failure to be recognized by your operating system. USB\VID_0BDA&PID_F179 (This is the most common ID for
For Fedora / RHEL:
Linux support often requires community-maintained drivers, as it is not always native to older kernels.
The Realtek 8188GU is a ubiquitous chipset found in hundreds of "Nano" USB WiFi adapters. It is the unbranded chip inside many generic USB dongles sold on Amazon, eBay, and AliExpress.