... price is 12US$per (10pcc)1. With double 7dBi+7dbi omnidirectional Antenna;2. Connects at a full 54Mbps via USB 2.0 ... Reception range 3600meters Data rate IEEE 802.11b:1,2,5,5 ,11Mbps , IEEE 802.11g:6,9,12,18,24,36 ... /128/256bit),WPA,WPA-PSK,WPA2 TKIP/AES , WPA2-PSK Antenna RP-SMA double 7DBI OS Supported Windows 98SE,Me,2000 ...