Amazon's Fire TV Ethernet Adapter Promises Gigabit—But USB 2.0 Keeps Speeds in Check
Amazon’s new Fire TV Ethernet Adapter uses a USB-C connector and is marketed for gigabit speeds with the Fire TV Stick HD (2nd Gen), but the stick’s likely USB 2.0 port caps real-world performance to about 350 Mbps, even though the adapter and Ethernet spec support more. The hardware details for the 2nd-gen stick aren’t published, suggesting future Fire TV models with USB 3.x could unlock true gigabit speeds; for now, the upgrade mainly future-proofs the lineup while keeping current speeds limited by the stick’s USB interface.