This Nintendo Switch Dock (With LAN Port) is the dock that is included with each Nintendo Switch - OLED Model.
Switch Dock, Docking Station for Nintendo Switch/Switch OLED Charger, Portable Charging Stand Switch TV Dock Support 4K/ 1080P HD TV Adapter Compatible with HD, USB 3.0 Port,Type-C : Video Games
You don't need to buy the Nintendo Switch OLED to get its upgraded TV dock - CNET
【🌟Upgraded Switch Docking Station】Compatible with Nintendo Switch/Switch OLED, MVIIOE for nintendo switch dock is 6 in 1 switch charging dock with a
Upgraded Switch TV Dock for Nintendo Switch/Switch OLED, MVIIOE Switch Docking Station with Ethernet LAN, Support , 4K@60HZ 1080P HDMI 2.0
Game Docking Station For Nintendo Switch USB 2.0 Hub With Gigabit Ethernet 4K HD HDMI-Compatible Adapter A - AliExpress
Nintendo Support: How to Connect to the Internet Using a Wired Connection
Screen TV Dock Station for Nintendo Switch Console : Video Games
Nintendo is now selling the Switch OLED dock separately, here's where to find it
Nintendo will sell you the Switch OLED's dock with built-in ethernet - The Verge
Nintendo Switch Console with Gray Joy-Con Controller