Supports up to 150 Mbps using 40MHz channel width; real-world throughput typically ranges between 40–90 Mbps .
Download the Realtek RTL8188CU driver package matching Windows 10 (or Windows 8.1 64-bit, which is fully backward-compatible with Windows 10). Extract the downloaded .zip or .rar folder to your desktop.
The adapter connects to Wi‑Fi but the internet connection is unstable; you may need to unplug and replug the adapter every few minutes to restore connectivity. Solution: Supports up to 150 Mbps using 40MHz channel
If your adapter is not recognized automatically or is performing poorly, follow these steps to install the official Realtek driver. 1. Automatic Update via Windows
If Windows finds a verified driver in its updated architecture database, it will install it automatically. Restart your PC once complete. Option 2: Manual Driver Download and Installation The adapter connects to Wi‑Fi but the internet
The Realtek RTL8188CU is a wireless LAN (WLAN) 802.11n USB network adapter chipset that has been widely used in low‑cost Wi‑Fi dongles for many years. In Device Manager, the adapter is listed as a “Realtek RTL8188CU Wireless LAN 802.11n USB 2.0 Network Adapter”. It supports both 2.4 GHz and 5 GHz bands and offers theoretical speeds of up to 150 Mbps (single‑stream 802.11n) or 300 Mbps (dual‑stream). In real‑world usage, Windows 10 64‑bit users typically see transfer rates in the range of (about 88‑144 Mbps ).
Locate the downloaded file. If it is a compressed ZIP file, right-click it and choose . Automatic Update via Windows If Windows finds a
If you are still experiencing issues with your connection, tell me: What is the or behavior you are seeing? What is the brand/model of your USB Wi-Fi dongle? Did this problem start after a recent Windows update ? Share public link
Click . Click the Have Disk... button.
2.4 GHz only (does not support 5 GHz or Wi-Fi 5/6).