This Nintendo Switch Dock (With LAN Port) is the dock that is included with each Nintendo Switch - OLED Model.
6 In 1 Dock Station with RJ45 LAN Port for Steam Deck/Nintendo Switch/ – SupremeGameGear
Internet connection (with a wired connection), Nintendo Switch Support
Nintendo announces Switch OLED, to be released in October
Dock for OLED Model - Black - Hardware - Nintendo - Nintendo Official Site
You don't need to buy the Nintendo Switch OLED to get its upgraded TV dock - CNET
Nintendo Switch – OLED Model - Nintendo - Official Site
Nintendo Switch – OLED Model w/ White Joy-Con White 115461 - Best Buy
LAN Adapter for Nintendo Switch - HORI USA
Nintendo Switch Vs Nintendo Switch OLED: Which Should You Buy?