orange pi 3 open-source single-board computer Screenshots Hunter's comment the only thing you need to know about this board is the price ($35) and the fact that it can decode 4k videos to 4k output. H265/HEVC

The blue circuit board integrated in the Baikal Miner is an Orange Pi One, this is a quadcore PC that ships for USD 10,--. Can anyone tell me what the red circuit board is?