WiFi6 BT 5.4 900Mbps: Dual Band 2.4G&5GHz , 900Mpbs,Bluetooth 5.4, The three network cards only have different appearances, but the functions are the same. The dongle 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. 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<br><br>Working frequency: 2.412GHz-2.484GHz; 5.180-5.825GHz Transmission rate: AX900Mbps (2.4GHz: 286mbps; 5GHz: 600mbps) Antenna: Built-in 2dBi dual-band antenna Wireless standard: IEEE802.11a/b/g/ac/ax Encryption method: WPA3/ WPA-/WPA-/WPA2- Working mode: WiFi receiving/AP transmitting Support -MIMO multi device connection to improve network efficiency Compatible system: Only Support 10/11, Compatible with Linux, Compatible with , Compatible with domestic UOS, etc. style: 2 Color: Black Material: plastic<br><br>Package Contents: 1 * Adapter<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.