Thanks to nostr:npub1smreuk4gcs0k3jdz8zzckzxy6c7pkr8x6nafd5e2jr0jt0vrkpeqvpxn8w for finding this gem:

4TH/s Bitcoin miner from Canaan:

https://shop.canaan.io/products/avalon-nano-3-oct-future-without-adaptor?VariantsId=10370

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Discussion

29J/T is pretty bad. It's essentially like running my S9s, which I no longer run because they are just not worth it any longer.

Agreed, BitAxe seems to have the best power performance for home miners currently.

Wait, I'm confused, it says:

4T/ 29J

Does that mean that 1T = 7.25J ?

I've found this:

https://mineshop.eu/avalon-nano-3/

which says it consumes up to140W, so, yeh it is pretty bad.

But it's a nice heater too! So it works for me!

I've seen pictures of miners carrying S9's to hotel rooms to do some free mining during their stay 😂