I have the 4tb Nano3 Canaan miner- it was good value at USD$99 but they stopped selling the Nano3 and now they sell the 6tb Nano3S at USD$249 - not such good value imo though maybe more efficient.

The Nano3 is very quiet on the lower 2.2tb setting- quite noisy on the highest setting.

https://www.canaan.io/avalonhome

bitcoin_Mining

Canaan Avalon Q, "professional" home mining machine

k00b

I have the 4tb Nano3 Canaan miner- it was good value at USD$99 but they stopped selling the Nano3 and now they sell the 6tb Nano3S at USD$249 - not such good value imo though maybe more efficient.
The Nano3 is very quiet on the lower 2.2tb setting- quite noisy on the highest setting.
https://www.canaan.io/avalonhome