TP-LINK 54Mbps 802.11a/b/g Wireless PCI Adapter . Connectivity technology: Wired, Host interface: PCI, Interface: 32-bit PCI. Data transfer rate (max): 54 Mbit/s, Supported data transfer rates: 11g: 54/48/36/24/18/12/9/6 Mbps; 11b:11/5.5/3/2/1 Mbps. Modulation: 1M DBPSK, 2M DQPSK, 5.5M/11M CCK, 6M/9M/12M/18M/24M/36M/48M/54M OFDM, Frequency band: 2.4 - 2.4835, 5.150 - 5.850 GHz. Antenna connector type: SMA. Certification: CE, FCC