What are 802.11ax, 802.11ac, 802.11n (Wi-Fi 6, Wi-Fi 5, Wi-Fi 4)?
What are Wi-Fi standards and how do they differ from each other?
Amazon.com: Generic Intel Wireless-N 7260 802.11bgn 2x2 2.4GHz Wi-Fi + Bluetooth 4.0 802.11b/g/n Adapter 7260HMW BN not for IBM/Lenovo/Thinkpad and HP : Electronics
What is 802.11n? How is it different from 802.11b, 802.11g, and 802.11a?: EveryMac.com