These are 4 types to choose : 1 900M BT5.4 and WIFI 6 : Dual Band 2.4G5GHz , 900Mpbs,Bluetooth 5.4 2600M BT5.0 and WIFI 5 : Dual Band 2.4G5GHz , 600Mpbs,Bluetooth 5.0 3 600M BT4.0 and WIFI 5 : Dual Band 2.4G5GHz , 600Mpbs,Bluetooth 4.0 4 150M BT4.2 : 2.4G , 150Mpbs,Bluetooth 4.2 Bluetooth 5.4 and WIFI Product Introduction: The AX913B dual band wireless USB network card is suitable for wireless connection of desktop PCs and other devices, and can provide a convenient and fast wireless internet access. The network card supports automatic detection function and can automatically adjust the speed Comply with IEEE 802.11a/ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.1ax standards Wireless transmission rate: up to 286Mbps in the 2.4G frequency band; The 5G frequency band can reach up to 600Mbps Support advanced security mechanisms for WPA, WPA2, and WPA3, providing security guarantees for wireless network connections Product selling points: 1 900Mbps high-speed transmission rate 2 2.4G5.8G dual frequency concurrent 3 Drive free, plug and play 4 External 2dBi antenna for more stable signal 5 Supports WiFi6 standard IEEE802.11ax protocol 6 Compatible with mainstream operating systems in the market 7 Support WPA3 encryption format for safer internet access 8 Support MU-MIMO multi device connection to improve network efficiency 9 Supports WiFi reception and AP hotspot transmission Bluetooth 5.0 and WIFI For Bluetooth 5.0, you need to uninstall the original driver and reinstall the driver. AC600 Mbps USB With Bluetooth 5.0 Specification Bluetooth Specification Bluetooth version: 5.0 Transmission distance: 5 meters Antenna gain: 5dBi Wifi Speed:600Mbps Support operating system: For WIN 7/WIN8/ WIN 10 operating system Note: Bluetooth driver do not support windows XP/ VISTA /Mac Bluetooth 4.0 and WIFI Material: ABS Bluetooth version: V4.0 Network card: 600Mbps Compatible system: for windows XP/7/8/10/vista USB standard: USB 2.0 Frequency range: 2.4-2.4835Ghz Wireless security: 64/128 bits WEP WPA/WPA2 WPA-PSK/WPA2-PSK TKIP/AES Bluetooth 4.2 and WIFI Description Main chip: RTL8723 Transmission speed: 150Mbps Supported Devices: WIFI Support operating system : for Windows xp/7/8/8.1/10 Linux/MAC OS Bluetooth-compatible Support operating system : for Windows 7/8/8.1/10/11//LINUX Bluetooth-compatible version: V4.2 Transmission distance: 10 meters RF power: 10dBm maximum Antenna gain: 2dBi Transmission speed: 3M/S Operating current: 100mA-200mA BT+WIFI Current changes with operating mode.