Bing found the following results
What Is 802.11n Wi-Fi in Computer Networking? - Lifewire
IEEE 802.11n-2009 - Wikipedia
What are 802.11ax, 802.11ac, 802.11n (Wi-Fi 6, Wi-Fi 5, Wi-Fi 4)?
What is 802.11n? | Definition from TechTarget
IEEE 802.11 - Wikipedia
802.11ac vs 802.11n WiFi: What's The Difference? - Forbes
IEEE SA - IEEE 802.11n-2009 - IEEE Standards Association
802.11n vs 802.11ac - Tech Advisor
Definition of 802.11n | PCMag
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