A used 1st-gen Fire TV Cube is $39.99 in “very good” condition on Woot, with free shipping for Amazon Prime members. These units are tested and verified by Amazon, so you shouldn’t have any issues because they’re used. While the 1st-gen Fire TV Cube does support 4K HDR and Dolby Atmos, it’s a bit underpowered for things other than basic streaming and will feel a bit more sluggish than something like the Fire TV Stick 4K. That said, at this low of a price, it might be worth getting for the accessories alone.
This deal includes with the latest Alexa Voice Remote that comes with power and volume buttons, which costs $29.99 on its own. It also comes with an Ethernet adapter, which runs $14.99 on its own, that is compatible with the Fire TV 3 and all Fire TV Sticks except the 1st-gen Stick. Streaming capabilities aside, the IR blasters, mics, and speaker in the 1st-gen Fire TV Cube do a much better job at controlling your home theater by voice than the Fire TV Blaster does, which normally runs $34.99 but is on sale for $19.99 right now.
Before the 2nd-gen Fire TV Cube was released, I actually used a Fire TV Stick 4K as my main device and kept my older 1st-gen Fire TV Cube connected just so that I could retain the ability to control everything by voice. At $39.99, this Fire TV Cube deal might be worth it as an add-on to your existing Fire TV Stick 4K to add Ethernet and hands-free capabilities, without needing to spend the $79.99 to $119.99 needed for a 2nd-gen Fire TV Cube.