Rockpi4/hardware/revision

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    ROCK Pi 4 >  Hardware >  Hardware Revision

There are three models of ROCK Pi 4, model A, model B and model C. Model A is a stripped down version of model B. Model C is an enhanced version of model B. The differences are:

Model A vs. Model B
- Model A doesn't have wifi/bt model(ap6256)
- the RJ45 connector on model A doesn't support PoE
- Model A doesn't have the 4Pin PoE header

Model B vs. Model C
- Model C adds one additional mini DP port based on model B
- Model C changes the HDMI connector from type A to type D(micro HDMI)

Change lists

Model A | B

V1.3

This is the first MP version, the key features are:

User type C for power, adds QC&PD trigger IC
LPDDR4 for 1/2/4GB ram
Use odroid compatible eMMC socket as storage
On board wifi antenna

V1.4

V1.4 is a slightly updates based on the V1.3, solves the issues reported by users. The schematic is the same as V1.3.

Changes the USB3 OTG label to simple L/H for Host/Device
Add external wifi 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

V1.5

To fight with the global chips shortage, replace the short of supply chips.

ROCK Pi 4A and 4B now share the same PCB(ROCK Pi 4), no wifi/bt module pasted on 4A, RJ45 has no PoE capability on 4A
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

V1.6(4A+/4B+)

4A+ and 4B+ now share the same PCB(ROCK Pi 4 Plus), no wifi/bt module pasted on 4A+, RJ45 has no PoE capability on 4A+
Add USB C input voltage measure from SoC ADC
Add EEPROM (BL24C16A) for mac address and serial no.
eMMC socket changed to on board chips
Three buttons are soldered by default.(1: Maskrom 2: Reset 3: Recovery) See [picture here].

V1.72(4A+/4B+)