The 21 Bitcoin Computer is meant to be a general purpose &quot;dev kit&quot; for Bitcoin, it&#x27;s not just a wallet. Think of it like a microcontroller dev kit: they are large PCBs, with I&#x2F;O pins, LEDs, flash, ram, and all the peripherals to cover most needs for most projects. The 21 Bitcoin Computer is the equivalent: it has hardware for mining, for just acting as a Bitcoin relay node, and for acting as a wallet.