http://www.gadgettown.com/10-Feet-Antenna-Extension-Cable-Wifi-Router.html
Antenna RP-SMA Extension Cable Wi-Fi WiFi Router is perfect for laptops to display on a separate, larger monitor and is used for short distance applications only. This RP-SMA Extension Cable Wi-Fi WiFi Router Provides high speed data transfer rate and easily to your laptop or another audio video device. For applications that require longer distances and highest resolution.