X-MEDIA 300Mbps 802.11n Wireless PCI Adapter/Card for Desktop PC, 2T2R, 2 x 5dBi Antennas, XM-WN3500D 32-bit PCI interface Compliant with IEEE 802.11n/g/b standards Up to 300 Mbps data transfer rate 802.1x authentication standards Includes two 5dBi high gain detachable antennas