Connect your Chromecast with Google TV directly to your router to create a fast and reliable connection for your Chromecast — perfect for
Ethernet Adapter for Fire TV Stick Google Home Mini Chromecast and More Streaming TV Sticks 10/100Mbps Network Micro USB (A) to RJ45 Ethernet Adapter with USB Power Supply Cable 3.3ft (Black)
Google Ethernet Streaming Devices
The Ethernet Adapter for the new Chromecast with Google TV will cost $15/£15 (links in comments) : r/Chromecast
Ethernet Adapter for chromecast with Google tv,USB C to Ethernet Adapter with Charging Port Compatible with Google TV,Smartphones, Tablets, Android Devices
Chromecast with Google TV (HD) - Streaming Device
USB-C Gigabit Ethernet Adapter with Charging Port,Thunderbolt 3 to RJ45 Network Socket with Type-C PD 60W Power Delivery for Chromecast Google TV,MacBook,Mac,iPad 10 Air 4 5,Dell XPS,Black Black
Cable Matters USB C to Gigabit Ethernet Adapter for Chromecast with Google TV - Buy at GetWired Tronics
USB-C Gigabit Ethernet Adapter with Charging Port,Thunderbolt 3 to RJ45 Network Socket with Type-C PD 60W Power Delivery for Chromecast Google TV,MacBook,Mac,iPad 10 Air 4 5,Dell XPS,Black Black
Genuine OEM Ethernet Power Adapter for Chromecast with Google TV 5V 1.5A 7.5W
Itramax USB C Gigabit Ethernet Adapter with Charging Port,Thunderbolt 3 to RJ45 Network Socket with Type-C PD 60W Power Delivery for Chromecast Google TV,MacBook,Mac,iPad Air 5,Dell XPS