Fire TV Stick 4K with USB Power Cable (eliminates the need for AC adapter)
Fire TV Cube (2nd Gen) Review
Fire TV Cube review: It's hip to be square
Fire TV Cube (3rd Generation) Review
USB port on the Fire TV Cube 3 loses power when the device is alseep, causing issues with external Gigabit Ethernet adapters and more
Fire TV Cube review: Streamlined and speedy entertainment
Fire TV Cube (3rd Gen) review with Pros and Cons - Smartprix
confirms the existence of a 'Fire TV Cube' (update)
New Fire TV Cube 2022 (3rd gen) - MobileRead Forums
Fire TV Cube Review: Alexa can potentially change the way you watch TV - Smartprix
Fire TV Cube has a Micro USB port for an Ethernet Adapter and an Infrared port
TV Xstream LAN Ethernet Adapter with 3 USB Port Hub with Micro USB Power for TV Streaming Devices, Stick 2nd Gen, 3rd Gen 4K Firestick, Plus USB to DC