From what I can tell what you will need is: Raspberry Pi ~ £30 Powered USB Hub ~ £20 USB ASIC Miners ~ £25 each Depending on the amount of USB Miners you add, varies the speed you can mine. Therefore: ~£200 all in should set you up with that setup with 6 USB miners. At the current speeds (difficulty) and bitcoin value it will take the most part of a year to get your money back. Then profit after that. However if you collect the coins and don't cash in, In a years time they might be worth x2 of what they are now, but that's a gamble. Bearing in mind, difficulty also increases over time. Plus electric bills having this running 24/7. However with the Pi setup, electricity usage is very minimal. All in all, it will generate money, but with this machine the best part of the first year will be covering your costs. Its really a gamble. P.s. Bear in mind, you will need a keyboard/monitor to setup the Pi with software etc. Plenty of info out there for mining bit coins too.