I need of informations about this fpga. A friend of mine told me that they have only one algorithm and have bragged about making others for several months. I don't know whether to trust or not. Can anyone give me some advice? there has been talk of an algorithm for ethereum for months. Some say they are scammers who are constantly changing society.

I think of an interest rate of 4%, of course I need guarantees.

I' m interested to know if there is a testnet for btc or/ and if someone can give me some btc for test how it works.