The 21 Bitcoin Computer is the first computer with native hardware and software support for the Bitcoin protocol.
It is designed for developers to easily build Bitcoin-payable apps, services and devices
Operate it as a standalone computer, or connect it to any Mac, Windows, or Linux machine.
Ideal to learn how to run a Bitcoin node and build blockchain applications.
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Used for just a few hours.
Missing standard power adapter.
Year 2017.
199 EUR + Shipping (used to sell for 399 USD)
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More information here:
https://www.amazon.com/21-INC-21BC1-Bitcoin-Computer/dp/B014RD021C