Item #: RTL8188CUS
Reg. Price: $12.95
Our Price: $8.50
8 units available



Add wireless connectivity to your MinnowBoard Turbot, MinnowBoard Max, Raspberry Pi/Pi2 or upgrade your old computer to 802.11n.


• WiFi IEEE802.11n 2.4Ghz band.
• 64/128 bit WEP, WPA/WPA2, WPA-PSK/WPA2-PSK and Wi-Fi Protected Setup (WPS requires software activation, no hardware WPS button on device)
• Backward compatible with 802.11g/b and USB 1.1
• Data transfer rates of up to 150 Mbps theoretical- 24 Mbps realistic in field testing.
• Supports Ad-hoc and Infrastructure modes

Supported Operating Systems

• Windows XP, Windows Vista (32-bit and 64-bit), Windows 7, 8/8.1, & 10 (32-bit and 64-bit).
• Linux (driver included with kernel versions 2.6.38, 3.0.8 and later, compile required for 2.6.18-2.6.37)
• Raspberry Pi running Raspbian


The small size of this adapter makes it extremely portable and keeps it nicely flush with the USB port. However, the small antenna has trade-offs in terms of range and performance.

We recommend using with an access point or peer wifi adapter that is in the same room or nearby. The adapter works best with line of sight to the access point.

A laptop with built-in Wi-Fi antennas can cause interference and connection problems. We recommend to disable the internal Wi-Fi or to use a powered USB hub or cable to help get the nano adapter out of range of other signals.

Peer-to-Peer (Ad-Hoc) connections

Because of its small size, the adapter is especially useful for setting up a separate, peer-to-peer (ad hoc) connection between two wifi adapters. Search “ad hoc wifi setup” for details.

Driver Installation

Download and install the latest drivers

We recommend installing the very latest drivers, available at


For Windows 7, 8, and 10, if you have another active network connection, simply plug in the adapter and Windows will automatically download and install the latest drivers from Windows Update.

Once the driver is installed, use your operating system’s standard built-in support for making a new wireless connection to an access point.


This adapter and chipset has open source drivers with support for Linux Kernel 2.6.18 through 2.6.38(compile required). Driver is already in recent Linux kernel versions 2.6.39 and later (kernel option CONFIG_RTL8192CU). To download and build the latest driver from Realtek, extract the Linux driver file, and run “make && sudo make install”.


Android 1.6~2.3 and 4.0 devices may or may not, at manufacturer’s discretion, include the Android driver from Realtek on their customized Android builds. We have not done any internal tests as of yet and cannot recommend this device for Android users at this time- although this may be a great option for Android developers familiar with compiling drivers into android source.

Raspberry Pi

Works well with all models of Raspberry Pi running the latest version of Raspbian. We highly recommend using it with a powered hub to ensure sufficient power. Insufficient power will cause the Pi to randomly reboot. See this blog post for information on setting it up.

Additional Information

Backwards compatible with 802.11b and 802.11g networks, and USB 1.1 ports.
Supports Ad-hoc and Infrastructure modes.
NOTE: Windows 8.1 and Windows 10 do not support using wireless adapters to create a hotspot (Ad-hoc network).
This item is not Windows RT compatible.


One year limited parts and labor warranty
Email support from Manufacturer