The HardROCK64 is a RK3399 based SBC

The HardROCK64 is a RK3399 based SBC

Pine64 has launched a smaller and cheaper “HardRock64” variant of its RK3399-based RockPro64 SBC that removes the PCIe and USB Type-C.

The board features:

  • The RK3399 hexa-core SOC found in the Pinebook Pro and on the ROCKPro64
  • 2xUSB 3.0
  • 2xUSB 2.0
  • WiFi AC and BT 5.0
  • Gigabit Ethernet
  • Full GPIO pins
  • SPI flash
  • eMMC socket
  • mSD card slot
  • Fan & RTC headers
  • Heatsink mount
  • CSI connector
  • DSI connector
  • IR receiver
  • 5V barrel jack for power
  • Digital video out

The board will run all ROCKPro64 OS images with little or no tweaks (we checked) and probably most Pinebook Pro OS with a ‘simple’ device tree tweak. In other words, if you don’t need all of the ROCKPro64’s functionality – e.g. PCIe or USB-C – then this may just be the board for you.

The board does run hot so a heatsink is pretty much mandatory. A couple of different options will be sold by us to match your needs and expected the SOC load.

The board will ship in 3 LPDDR4 RAM configurations (tentative $ pricing):

  • 1GB ~ $35
  • 2GB ~ $45
  • 4GB ~ $55

Tentative release date: April 2020

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Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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