ZEXMTE 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.

Doesn’t work at all. I’ve had it a few months but unopened and undamaged in anyway. Just tried fitting it and it just doesn’t work. Firestick not seeing Ethernet where everything else does so can only be that this doesn’t work. Too late to return as well!

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.

Faulty - does not work on Fire TV - too late to return.

Iam getting 490 mbps speed in firestick 4k max, that to i have connected ethernet cable to my gl.inet flint 2 vpn router.

Gets my download speed on fire stick at nearly 300mbps. Swapped from official Amazon product which never went over 100mbps.

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

Je viens de le connecter derrière ma FIRE TV 4k Max, elle-même reliée par câble RJ 45 à un port de ma FREEBOX. Super, comme j'ai fait installer la fibre dans mon logement je bénéficie des vitesses montantes et descendantes (320/250) au niveau du Speed Test Télé. Les Images sont de meilleures qualités.

Excellent

Todo bien, funcionando a la primera ahora vuela el internet