There are 2 models optional, different model with different interface and appearance, please choose suitable model before purchase: 1300Mbps Chipset AIC8800Frequency: 2.4G, driver-free for Win8 and above system. 265 0Mbps Chipset RTL8811CU Frequency: 2.4G5G, driver-free for Win8 and above system. 650Mbps Network card Specification: Chipset:Realtek RTL8811CU Interface:USB2.0 Hi-Speed connector Wireless Speed:11n: Up to 200MbpsAC: Up to 433Mbps Frequency Range:2.4GHz 5.8GHz Wireless Transmit Power:20dBmMAX EIRP Modulation Technique:OFDM/CCK/16-QAM/64-QAM Work Mod:Ad-Hoc/ Infrastructure Wireless Security:64/128 bits WEP, WPA/WPA2, WPA-PSK/WPA2-PSK TKIP/AES Temperature Range :Operating: -20C to 70C, Storage: -40C to 90C Humidity:Operating: 5% to 95% non-condensing, Storage: Max. 90% non-condensing Support Operating System:Windows XP/Vista/ Win 7/Win 8 /Win8.1 /Win10/Win11 Dimensions:15.5 x 8 x 26mm 300Mbps network card Specifications: Chipset:AIC8800 Interface:USB2.0 Hi-Speed connector Wireless Speed:11ax: Up to 286.8Mbps Frequency Range:2.4GHz Wireless Transmit Power:20dBmMAX EIRP Modulation Technique:MUMIMO, OFDMA Work Mode:STA, AP, WiFi Direct modes concurrently Wireless Security:WEP/WPA/WPA2/WPA3SAE Personal, MFP Temperature Range:Operating: -20C to 70C, Storage: -40C to 90C Humidity:Operating: 5% to 95% non-condensing, Storage: Max. 90% non-condensing Support Operating System:Win 7/Win10 /Win11