Description: 【USB WiFi Adapter】: 650M drive free network card, plug and play, dual band. 5dBi high gain external antenna Ap sharing. 【High Speed Signal】: USB Card, front 180° + side 90° multi dimensional adjustment, adjust antenna angle according to space and occlusion, improve signal sensitivity 【Secure Internet Access】: Wireless Network Adapter supports WPA-PSK/WPA2-PSK/WEP data mode 【Mu Mimo Technology】: Wireless Network External Receiver, allowing multiple antenna of the router to serve multiple devices at the same time, so that each device has high priority processing treatment, making the Internet more smooth 【Widely Compatible With Multiple Systems】: Free Driver USB WiFi Adapter is for XP/Win7/8/8.1/10/11 systems. Specification: Main chip: 8811CU Interface: USB 2.0 Transmission distance: Indoor: Maximum: 100m Working frequency: 2.412~2484GHz/5.15~5.825GHz Transmission power: 802.11b (CCK) 11Mbps: 17+/-2dBm 802.11g (OFDM) 54Mbps: 14+/-2dBm 802.11n (OFDM) 54Mbps: 14+/-2dBm 802.11ac (AC80) MCS9: 12+/-2dBm The assessed value: 11b 11Mbps: