alfa high power usb wifi adapter

  High-power deciphering passwords54M USB Wireless Network Card
* Deciphering the router set up password, free to share other people's wireless network
* USB interface, hot PnP supported
* TCP/ IEEE 802.11g, IEEE 802.11b supported, compliant with Wi-Fi
* IP, NDIS3, NDIS4, NetBEUI supported
* Two working modes available: Ad Hoc Mode and Infrastructure Mode
* Transmission rate up to54Mbps covers 300m
* Network status auto detects and rate auto negotiable
* WPA, IEEE802.11x, TKIP, AES supported
* Simple configuration, monitor program available
* Supports the communication of desktop PC and notebook with WLAN
* Wireless roaming supported