There are 4 models optional, please choose suitable model before purchase: (1) Dual Band 2.4G＆5G，BT5.4+WIFI 6 900M Network Card, Driver-Free for Win10&Win11. (2) Dual Band 2.4G＆5G，BT5.4+WIFI 6 900M Network Card, Driver-Free for Win10&Win11. (3) Dual Band 2.4G＆5G，BT5.4+WIFI 6 900M Network Card, Driver-Free for Win10&Win11. (4) 2.4G BT4.2+WIFI 150M Network Card, Driver-Free for Win 8.1 or above. AX900 dual-band wireless USB network card is suitable for wireless connection of desktop PC and other devices, and can provide a convenient and fast way to access the Internet wirelessly. The network card supports automatic detection function and can automatically adjust the rate. Comply with IEEE 802.11a/ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.1ax standards. Wireless transmission rate: 2.4G band can be up to 286Mbps; 5G band can be up to 600Mbps. Support WPA, WPA2, WPA3 advanced security mechanisms to provide security for wireless network connections. Specification: Model: AX900. Color: Black. Rate: 2.4GHz Max 268Mbps/ 5G Max 600Mbps. Compatible systems: Windows 10/11. Dual band WiFi 6 wireless network card. Both 2.4GHz and 5GHz dual bands support the new generation Wi Fi 6 standard. The 5GHz band speed can reach up to 600Mbps, while the 2.4GHz band speed can reach up to 286Mbps. Adopting WiFi6 dual band technology, the wireless speed can reach up to 600Mbps (5G)+286Mbps (2.4GHz).