The block Erupter are currently surely the easiest way to enter into Bitcoin mining. (AMD) graphics cards are now too expensive in comparison and have far too much power consumption. By contrast, the USB block Erupter just 2.5 watts and have now reached in price regions where there is no longer particularly hurts if you At length several. Due to the increasing Difficulty you will probably never be able to return the paid price mines (except the Bitcoin price shoots enormously in height). So it's more of a nerdy hobby. The use is very simple: First, you have to be downloaded and installed the drivers from CP210x SiLabs dot com. After that, you can use a program such mining Bitminter easily. Who should make the most of the stick out using the latest version of BFGMiner. There, the usual error rate of 1% is reduced to around 0.6% - what more dissolved Shares means and is reflected in (minimum) higher amount disbursed Bitcoins. Of course, there is (and thus declining disbursement of Bitcoins at constant Hashrate) in a few months do not make sense at the Surging diffculty to use block Erupter. However, the things are a historical document and thus a collector's item which comes in different colors.