LightInTheBox offers the 2nd-generation Xiaomi 802.11n WiFi USB Wireless Repeater for $6.99 with free shipping. That's the lowest price we could find by $9. This adapter can be used to expand your home network.
Note: This item ships from China and may take two to five weeks to arrive. Uncheck "Add Shipping Insurance to your order" during checkout to remove the 49-cent fee.