Product Detail Infrastructure and Ad-Hoc Adopts MIMO technology for wireless rates of up to 300Mbps Adopts CCA technology which automatically avoids channel Quick Secure Setup, complies with WPS for worry free wireless security Supports 64/128/152-bit WEP, complies with 128 bit WPA standard Simple Configuration and monitoring Supports Roaming technology, guaranteeing efficient wireless connections. Supports Windows 2000/XP/Vista OS . The "TP-Link 300Mbps 802.11N Wireless PCI Adapter, 2T2R, with Detachable Antenna, Model: TL-WN851N" is best product for you. We recommended TP-Link 300Mbps 802.11N Wireless PCI Adapter, 2T2R, with Detachable Antenna, Model: TL-WN851N