With built-in wired LAN port.
Nintendo is now offering the Switch OLED model dock for purchase on their official website. Note that this is just the dock, and that the Nintendo Switch – OLED Model console, Joy-Con controllers, AC Adapter, and HDMI Cable are NOT included (available separately).
Sale is limited to one item per customer will leave your wallet £59,99 lighter.
This is a replacement for the dock included with Nintendo Switch – OLED Model.
It features two USB ports, an HDMI port for connecting to a TV and a new wired LAN port, allowing for more stable online play when playing in TV mode.
Compatible with Nintendo Switch and Nintendo Switch – OLED Model. Not compatible with Nintendo Switch Lite.
Please note: HDMI cable and AC adapter not included.
Source: The Verge