Product specification parameters:Main chip: RTL8192Interface: USB 2.0Protocols and standards: IEEE802.11/b/g&802.11nOperating frequency band: 2.4GHzColor: blackMaterial: plastic+metalAntenna: detachable 2dBi SMA antennaSecurity encryption mode: WFA, WPA, WPA2, WPS2.0, WAPITransmission power:802.11b: 16-20dBm@ 11Mbps802.11g: 14-16dBm@ 54Mbps802.11n: 14-16dBm@ 150MbpsReceiving sensitivity:802.11b: -80+/-1dBm802.11g: -73+/-1dBm802.11n: -70+/-1dBm(HT20);- 64+/-1dBm(HT40)802.11n: -70+/-1dBm(HT20);- 64+/-1dBm(HT40)Working voltage: 5.0VDC 5%power waste:Transceiving status: 220mA (max)Only TX status: 220mA (max) status only: 180mA (max)Package Contents:1 x USB Wifi AdapterOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.