These are 3 types to choose : 1 900M BT5.3 and WIFI 6 : 2 IN 1 Bluetooth and WIFI , 900Mpbs,Bluetooth 5.3 2600M BT5.0 and WIFI 5 : 2 IN 1 Bluetooth and WIFI , 600Mpbs,Bluetooth 5.0 3 150M BT4.2 : 2 IN 1 Bluetooth and WIFI , 150Mpbs,Bluetooth 4.2 , USB 2.0 Bluetooth 5.3 and WIFI Product Introduction: The AX900BT5.3 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 9 Main chip : RTL8723DU 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 150M Bluetooth 4.2 and WIFI Description Main chip: RTL8723 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. WIFI Description Supported standards and protocols: for IEEE 802.11n, IEEE 802.11g, IEEE 802.11b, CSMA/CA with ACK Transmission speed: 150Mbps Frequency range: 2.4 to 2.4835 GHz Working channel: 1-14 Modulation method: 802.11 g/n: OFDM, 802.11b: CCK 11, 5.5Mbps, QPSK 2Mbps, BPSK 1Mbps Transmission rate: 802.11b: 11,5.5,2,1 Mbp 802.11g: 54,48,36,24,18,12,9,6 Mbp 802011n: up to 150Mbps Receiver sensitivity: 130M: -65dBm@10% PER 108M: -65dBm@10% PER 54M: -65dBm@10% PER 11M: -87dBm@8% PER; Transmission distance: up to 100 meters in the room and up to 200 meters in the outdoors depending on the environment RF power: 16dBm maximum Antenna gain: 2dBi