Revision

You can check the differences between different hardware versions of ROCK 4 series boards here.

ROCK 4SE

• V1.53:
  The first mass-produced version.

ROCK 4C+

• V1.4:
  Remove M.2 connector.

• V1.2:
  Initial version.

ROCK 4A/B+

• V1.73:
  Optimize the headphone jack footprint for manufacturing.
  Board manufactured after 2022-08-05 will have SPI unpopulated. This include future revisions.

• V1.72:
  Ethernet phy changed from RTL8211E to RLT8211F(no software change required).
  QC/PD protocol trigger chip changed to CH224D.

• V1.6:
  The first mass-produced version.

ROCK 4A/B

• V1.5:
  Ethernet phy changed from RTL8211E to RLT8211F(no software change required).
  Change the headphone detect circuit, use the mic from HP jack by default.
  QC/PD protocol trigger chip changed to CH224D.

• V1.4:
  Changes the USB 3.0 OTG label to simple L/H for Host/Device.
  Add external Wi-Fi antenna option, not soldered by default.
  Change the headphone footprint to through hole leg one.
  Change user status LED from red to blue(blinking red led is confusing for some user).
  A 4MB(32Mbit) SPI flash is pasted by default, for future SPI booting support.

• V1.3:
  Use Type-C for power, adds QC&PD trigger IC.
  LPDDR4 for 1/2/4GB RAM.
  Use odroid compatible eMMC socket as storage.
  On board Wi-Fi antenna.

ROCK 4C

• V1.2:
  Change to a more tight micro HDMI connector.