Product specification parameters: Main chip: RTL8192 Interface: USB 2.0 Protocols and standards: IEEE802.11/b/g&802.11n Operating frequency band: 2.4GHz Color: black Material: plastic+metal Antenna: detachable 2dBi SMA antenna Security encryption mode: WFA, WPA, WPA2, WPS2.0, WAPI Transmission power: 802.11b: 16-20dBm@ 11Mbps 802.11g: 14-16dBm@ 54Mbps 802.11n: 14-16dBm@ 150Mbps Receiving sensitivity: 802.11b: -80+/-1dBm 802.11g: -73+/-1dBm 802.11n: -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 Adapter Only the above package content, other products 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.