The HiFive Unmatched[0] from SiFive is a beast of a dev board, but with a price to match ($665 from Mouser). For a smaller Arduino-style board, the HiFive1 Rev

The HiFive Unmatched[0] from SiFive is a beast of a dev board, but with a price to match ($665 from Mouser). For a smaller Arduino-style board, the HiFive1 Rev B[1] exists as well, but it's more an MCU than CPU. [0]: https://www.sifive.com/boards/hifive-unmatched https://www.sifive.com/boards/hifive-unmatched [1]: https://www.sifive.com/boards/hifive1-rev-b https://www.sifive.com/boards/hifive1-rev-b