IOGEAR IEEE 802.11n Wireless-N Adapter for $24.99 shipped.  Here is a screenshot for your reference.  It features the ability to add 802.11n access to any Ethernet enabled device such as a Blu-ray player, game console, media PC, DVR, or HDTV.  It also features push-button Wi-Fi Protected Setup (WPS), WEP, TKIP, AES, WPA and WPS2 hardware encryption [...]