As a point of reference, for one of the companies I consult for, they do their own custom hardware for industrial automation. 

The BOM of that board is about $70. The landed price in the US (after PCB manufacture, Assembly, Shipping, and Import Fees) is $130. These are done in quantities of 100-200 per run....if they do a "prototyping run" of 10 boards, the cost comes in at about $240 per board. 

I'd be willing to bet its very difficult to do a single board for less than say $250 once every thing is added up. 



freetx

Usually the original designer makes them and sells them to resellers. Who knows for how much. That's a hidden cost.

But, as it is open hardware, you can of course just build it yourself for cheaper.

nullama

bitcoin_beginners

Bitaxe miner pros and cons ??  🤔

cristaiji

Actually, I input the [BOM file](https://github.com/skot/bitaxe/tree/master/Manufacturing%20Files) from their GitHub to DigiKey and it adds up to $42 for all components without the ASIC. PCBs are cheap and machines solder for you. Even if you splurge on a Noctua fan, the BOM will come out to maybe $70. You don't have to design anything because all the manufacturing files are open source.