TP-LINK 54Mbps eXtended Range™ Wireless PCI Adapter. Connectivity technology: Wireless, Host interface: PCI. Data transfer rate (max): 54 Mbit/s. Chipset: Atheros, Frequency band: 2.4 - 2.4835 GHz. Antenna connector type: SMA, Gain: 2 dBi. Certification: CE, FCC