650M-1300Mbps 2.4G5.8GHz USB Wireless Wifi Adapter High speed Network Card RTL8811CU/RTL8812BU Dual Band 802.11AC Antenna For Laptop Desktop 650Mbps CF-811AC Specifications: Chipset: RTL8811CU Interface Type: USB2.0 Transmission Rate: 2.4GHz: 200Mbps, 5.8GHz: 433Mbps Wireless Standards: IEEE 802.11ac/n/g/b/a V3 supports WPA3, WEP, WPA-PSK, WPA2-PSK, WPA/WPA2. V3 Supports for Window XP/ 7 / 8/ 8.1/ 10/ 11; Win 7/10/11 supports driver free . 1200Mbps CF-812AC Specifications: Chipset: RTL8812BU Interface Type: USB3.0 Transmission Rate: 2.4GHz: 400Mbps, 5.8GHz: 867Mbps Wireless Standards: IEEE 802.11ac/n/g/b/a Technology: Supports MU-MIMO Encryption: WEP, WPA-PSK, WPA2-PSK, WPA/WPA2 Supports for Windows XP/ 7/ 8/ 8.1/ 1032/64bit/1164bit, Part MAC, Linux; Note : Win 11 64bit and Win 10 64bit does not support soft AP function. But Win 10/11 can turn on the Mobile Hotspot function that comes with your computer. QA Q1: Why PC/Laptop can not recognize the adapter after I insert it? A: Please confirm whether the adapter is correctly inserted into the USB port, or try other USB port. Q2: My PC/Laptop dont support CD driver, how do I install the driver? A: Please kindly download the driver from COMFAST Official Website or contact Customer Service. Q3: Why do I get a driver error when I install the driver? A: Please check whether the driver you installed is corresponding to your devices system. Q4: After the driver installation is completed, the adapter cannot be searched? A: Restart the computer after installation. Q5: Does this adapter support TV/ TV Box? A: Sorry, this device will only work when plugged into supported systems. Other devices such as TV, TV BOX, Printer, etc. which have USB ports, they dont have the necessary drivers to support this adapter. Q6: Why the wireless speed of adapter is lower than my router? A: The wireless speed is affected by many factors, such as distance, obstacles, interference, etc. Please contact customer service if you have any doubts. Q7. My PC/Laptop dont support 5GHz, can it connect to routers 5G WiFi by using this adapter? A: Yes, support. If the above