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产品参数及描述如下: Main Chipset MT 7601U Host interface USB 2.0 Type A LED Link/ Activity Antennas built-in onboard PCB antenna Operation Frequency ISM band , 2412~2483.5MHz (Depends on country region). Typical Transmit Power 802.11b (CCK) 11Mbps: 18+/-1dBm 802.11g(OFDM) 54Mbps: 15+/-1dBm 802.11n (HT20@MCS7), 14+/-1dBm,(HT40@MCS15),14+/-1dBm Receive Sensitivity 802.11b: -88+/-1dBm;802.11g: -73+/-1dBm 802.11n (HT20), -71+/-1dBm;802.11n (HT40), -68+/-1dBm Operation System Windows XP/Vista/7; Linux 2.6.X; MacOS X Security WEP64/128, WPS;WPA/WPA2(TKIP,AES); WAPI Voltage Range/Current DC 5.0V ± 5% / <150mA @802.11g Physical Specification Dimensions 22*15*7mm Weight 2.5g