1000Mbps Ethernet Adapter for Fire TV Stick, Micro USB to RJ45 Gigabit Ethernet Network Adapter Compatible with Fire TV Stick 2/3/4K, Chromecast Google Home Mini

Connects and works fine on Firestick 4K Max. I have 1 gig internet from VM and the speedtest app on my firestick shows just short of 400 Mbps dl, which is more than enough.

Update: returning it! It lasted 10 mins and lost connection. It's more than just power hungry it just doesn't work! Original review.... Using on a Google TV 4k. So far so good. Took some effort to setup, would not recognise at all finally saw some life when I put in on a bigger wattage power plug. I've got it on a 20w usb C plug now and it's connected and gives 340mbps as pictured ( I've got 1gbps Virgin broadband so doesn't seem to reach the full potential but good enough and better than the 30mbps I was getting from WiFi connection. Will see how it works over the next few days I'm concerned it may drop out as its so power hungry we will see! For reference you don't need to adjust any settings on the Google TV just turn of WiFi once it detects ethernet.

Swapped out the Amazon Ethernet one that’s limited to 100MBs on the Firestick 4K Max and plugged this in. Now have 300MBs download speed. I did use a more powerful Quick charge plug as they recommended that you need more power. Well worth it.

This is working fine for me on Fire TV Stick 4K Max (2021 version), but as another reviewer mentioned, it is not recognised on the Fire TV Stick 4K (non-Max, 2018-2022 version), it will pass through USB power in both cases but the ethernet adapter is not recognised on the older 4K Stick. On the 4K Max I am getting 330Mbps on the speed test, a big improvement on the 90Mbps I achieved with Amazon's own USB ethernet 10/100Mbps adaptor. For an alternative product that works for me on both the old Fire TV Stick 4K (2018-2022) and the Fire TV Stick 4K Max (2021) - and hopefully later versions that I do not have available to test - there is the Cable Matters item

Brilliant. Helps with wifi connection issues massively on the fire stick

While this Ethernet adapter advertises 1000 Mbps speeds, the micro-USB version cannot deliver more than 480 Mbps, the theoretical maximum for USB 2.0. Since the output is hardwired to micro-USB, it cannot be used with faster USB standards like USB Type-C or USB 3.0. This design fundamentally locks it to USB 2.0 speeds, which bottlenecks the adapter’s potential. That said, it does outperform WiFi in key areas. For example, latency was consistently lower during testing, with median round-trip times reduced by up to 50% compared to WiFi connections. Additionally, packet loss was almost negligible, with an improvement of approximately 2-3% fewer dropped packets, which can be critical for streaming and online gaming. However, had I known the micro-USB limitation, I would have opted for a more cost-effective 480 Mbps Ethernet adapter, as it would have delivered identical real-world performance on USB 2.0 devices. This adapter appears to offer no meaningful advantage over lower-cost options that don’t mislead with claims of 1000 Mbps speeds.

Work as intented not like other brands. Managed to plug my Chromecast with Google tv (4k) and Ethernet was recognised. 🥳🥳

Doesn't work on the old 4 k firestick

werkt zonder problemen voor een google chromecast met google tv

Werkt voorlopig perfect met de google chromecast

Great for connecting my chromecast to the internet with lan cable. Better than wifi.

Que no es salida tipo C, ya que no lo conecte físicamente a mi Chromecast 4k.

This device connected flawlessly to my Google TV (chromecast) and using the factory Google TV power supply was sufficient.