Sienoc 300Mbps USB Wireless Adapter WiFi Network Lan Card Supports Windows 2000, XP 32/64-bit, Vista 32/64-bit, Linux, MAC OS x. 802.11n/g/b 300M Wireless WiFi USB 2.0 Adapter (Realtek 8191 Chipset). Complies with IEEE 802.11n(draft), IEEE 802.11g, IEEE 802.11b standards. Provides USB 2.0/1.1 hight speed interface. Transmission rate up to 300Mbps. Supports Windows 2000, XP 32/64-bit, Vista 32/64-bit, Linux, MAC OS x. With an external antenna. Simple configuration and easy to use. 802.11n up to 300M (downlink) and 150M (uplink); 802.11g 54/48/36/24/18/12/9/6 Mbps auto fallback; 802.11b 11/5.5/2/1 Mbps auto fallback. RF frequency: 2412-2462Mhz (North America); 2412-2472Mhz (Europe); 2412-2484Mhz (Japan) RF output power: 13-17dBm Radio channel: 1-14 channels Range coverage: up to 3 times farther range than 802.11g Roaming: full mobility and seamless roaming from cell to cell Modulation: 11n BPSK QPSK 16QAM 64QAM OFDM; 11g BPSK QPSK 16QAM 64QAM OFDM; 11b DQPSK DBPSK DSSS CCK Data security: 64/128-bit WEP Encryption WPA, WPA-PSK, WPA2-PSK, TKIP/AES Media access control: CSMA/CA with ACK LED indicator: link/active (green) Operating system: Windows 2000, XP 32/64-bit, Vista 32/64-bit, Linux, MAC OS x