Realtek Rtl8188cu Wireless Lan 80211n Usb 20 Network Adapter Link <Tested>
The safest primary source for any Realtek driver is the official Realtek website. Official Manufacturer Archive
Most modern Windows operating systems will automatically detect the USB dongle. If it fails to plug-and-play, follow these steps:
Linux users have several good options for getting the RTL8188CU working, from built-in kernel drivers to proprietary ones.
The Realtek RTL8188CU is a compact USB 2.0 Wi‑Fi adapter implementing IEEE 802.11b/g/n (single‑stream 1×1) for portable devices and desktops needing wireless connectivity. It is commonly sold as inexpensive USB Wi‑Fi dongles for general web browsing, streaming, and light file transfers.
Run the setup.exe file. It is recommended to right-click and "Run as Administrator". The safest primary source for any Realtek driver
Microsoft Update Catalog RTL8188CU Link
Key characteristics
| Specification | Detail | | :--- | :--- | | | Realtek RTL8188CU (or the related RTL8188CUS) | | Host Interface | USB 2.0 | | Wi-Fi Standards | IEEE 802.11b/g/n | | Frequency Band | 2.4 GHz only | | Maximum Data Rate | Up to 150 Mbps | | Antenna Configuration | 1T1R (Single transmit, single receive) | | Security | WEP, WPA, WPA2, TKIP, AES | | Operating Modes | Infrastructure (client) and Ad-hoc (peer-to-peer) | | Typical Power Consumption | ~160 mA TX, ~125 mA RX |
Navigate to the Realtek Downloads section, select Communications Network ICs , choose Wireless LAN ICs , and look for the WLAN Nic > USB 2.0 Interface category. The Realtek RTL8188CU is a compact USB 2
: Supports 64/128-bit WEP, WPA/WPA2, and WPS for secure setup.
. It hosts verified driver packages for Windows 8, 8.1, and later versions that are often compatible with modern systems. TP-Link Support (Alternative Source)
The is a venerable chipset that continues to serve a purpose in 2025. Its primary strengths are its low cost, broad compatibility, and small physical size . It is an excellent choice for:
"This little guy," Max said, "is a lifesaver. It's an 802.11n USB 2.0 Network Adapter, which means it can give your laptop the wireless boost it needs. It's compatible with most devices, and it's incredibly easy to install." It is recommended to right-click and "Run as Administrator"
If you’re using a , you’ve got a classic, budget-friendly dongle that can breathe new life into an older desktop or repair a broken laptop Wi-Fi card. While it’s not cutting-edge, with the right setup, it’s still a reliable performer for basic browsing and streaming.
Windows 10 and 11 usually feature a built-in generic driver for this chipset, but it can be unstable. To install the dedicated Realtek driver:
Up to 100m indoors and 300m outdoors, depending on environment. Driver Installation & Download Links