You can read about old miners like Antminer S9. It is generating 14 Th/s with 1372W power consumption.
The S9 is something that I considered. My thought was just to try running it with 1 board.
Well the two are almost implied as if you're looking for 300W there is less heat to dissipate so less fan spins less noise, also since it's just 10 means less chips so much cheaper
But efficiency, you're not going to get it compared to the new generation, so ..really hard to come with something.
Obviously, I don't just want to burn money, so efficiency does matter, but I'm really just HODLing. I've got to heat my house one way or another, I get to support the network, and maybe some day, my $50 month increase in the electric bill turns into something more. I have a whole bunch of mining stuff that I use to heat my house, but my basement is cold, and I think the wattage range of 300-600 will put me in the Goldilocks zone.
The few things that I've been looking at:
- The S9, likely only running 1 board (I think that's possible) It's very inexpensive, but ancient and inefficient. It would get the job done, but the fan noise is a downside.
- Avalon Nano 3 (Thought about getting a few of these) Seems like they are quiet, and reasonably efficient. Downside of these, it doesn't seem like they quite exist yet, and the purchase process felt a little iffy
https://shop.canaan.io/products/avalon-nano-3?VariantsId=10282- Apollo BTC Pretty similar to the Nano spec wise, but it's a little more expensive. Purchase process seems legit.
https://shop.futurebit.io/products/pre-order-apollo-btc-a-bitcoin-asic-miner-and-desktop-class-computer-running-a-full-node-and-much-more-batch-1-ships-in-late-april-to-may