Encore Wireless N150 PCI-E Adapter with 2dbi Antenna (ENEWI-1XN42) Up to 150 Mbps Transfer Speed - Ideal for Sharing Files, Streaming Video, and Playing Online Games Detachable Antenna for Easy Upgrade GreenWLAN - Optimum Energy Efficiency with Smart Power Management For Desktop Standards: IEEE 802.11b, IEEE 802.11g, IEEE 802.11n 2.0 Interface: PCI Express 1.1 Frequency Range: 2412 ~ 2484 MHz ISM band (channels 1 ~ 14) Operating Channels: USA - 11; Europe - 13; Japan - 14 Antenna: 1x 2dBi dipole antenna with R-SMA connector Security: 64/128-bits WEP Encryption; WPA-PSK, WPA2-PSK, WPA, WPA2