Please update your OS to the latest version if it doesn’t work.
– Realtek RTL8811AU chipset ( USB ID = 0bda:a811 )
– Dual-Band 11ac 1×1 with 64/128/152 bit WEP, WPA/WPA-PSK,WPA2/WPA2-PSK securities
– Frequency Range: 2.4-2.483GHz ; 5.725~5.825GHz
– Support WLAN Standards: IEEE802.11ac/a/b/g/n
– Transmission Speed : ~200 Mbps
– USB 2.0 High-speed
– Antenna Gain: 2dBi
– Dimension : 36 x 19 x 9 mm
– LED for WiFi Link Activity
– Frequency Range: 2.4-2.483GHz ; 5.725~5.825GHz
– Dimension : 36 x 19 x 9 mm
– Weight : 5 g