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ROCK 4A/4B Plus

This is the documentation for ROCK 4A/4B Plus, written by Radxa Team with community contributions.

ROCK 4A/4B Plus is powered by OP1 with a dual core Cortex-A72@2.0GHz + quad core Cortex-A53@1.5Ghz ARM processor, 64bit LPDDR4, up to 4K@60 HDMI, MIPI DSI, MIPI CSI, 3.5mm jack with mic, USB Port, GbE LAN, 40-pin color expansion header, RTC. ROCK 4 SE is introduced in 2022.

Close look of ROCK 4A/4B Plus

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Features

Model	ROCK 4A/4B Plus
Processor	64bits hexa core processor Rockchip RK3399-T Dual Cortex-72, frequency 2.0GHz with qual Cortex-A53, frequency 1.5GHz Mali T860MP4 gpu, support OpenGL ES 1.1/2.0/3.0/3.1/3.2, Vulkan 1.0, Open CL 1.1 1.2, DX11.
Memory	LPDDR4 64bit dual channel LPDDR4@3200Mb/s, 1GB/2GB/4GB optioal
Storage	eMMC connector μSD card (μSD slot supports up to 256 GB μSD card) M.2 SSD (M.2 connector supports up to 2T M2 NVME SSD)
Display	Standard HDMI 2.0 up to 4k@60 MIPI DSI 2 lanes via FPC connector HDMI and MIPI DSI can work at the same time, support mirror mode or extend mode.
Audio	3.5mm jack with mic HD codec that supports up to 24-bit/96KHz audio.
Camera	MIPI CSI 2 lanes via FPC connector, support up to 800 MP camera(1mm pitch connector).
Wireless	802.11 ac wifi BT 5.0 with on board or external antenna
USB	USB 3.0 OTG X1, hardware switch for host/device switch, upper one USB 3.0 HOST X1, dedicated USB 3.0 channel, lower one USB 2.0 HOST X2
Ethernet	GbE LAN with Power over Ethernet (PoE) support additional HAT is required for powering from PoE
IO	40-pin expansion header 2 x UART 2 x SPI bus 3 x I2C bus 1 x PCM/I2S 1 x SPDIF 2 x PWM 1 x ADC 6 x GPIO 2 x 5V DC power in 2 x 3.3V DC power in
Others	RTC RTC battery connector for time backup(optional)
Power	USB PD, support USB Type C PD 2.0, 9V/2A, 12V/2A. Qualcomm® Quick ChargeTM: Supports QC 3.0/2.0 adapter, 9V/2A, 12V/1.5A
Size	85mm x 54mm

Getting start guide

Follow the Guide to start using your ROCK 4A/4B Plus.

Use Radxa Debian

Follow the Radxa Debian Guide

Download and install third party OS

Find more OS by the Radxa friends and the community.

Find supported accessories

Discover the accessories that just work on ROCK 4A/4B Plus

Learn more about the hardware details

Learn more about the ROCK 4A/4B Plus connectors and pinout

Check the data sheets of the components used on ROCK 4A/4B Plus.

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Setup/Quick start

Getting started with ROCK 4, including what you need and how to get it booted.
GPIO pinout
Backup and Restore your SD card or eMMC module
How to mount SSD with M2 extension board

What's new

2022-07-08: OpenSUSE now supports Radxa Zero, installation tutorials from OpenSUSE Wiki.
2022-06-23: ROCK 5B Developer Edition is shipping, checkout the Debug Party
2022-01-09: ROCK 5 Model B is announced: an ARM64 desktop level SBC

More:

2021-10-11: Radxa Zero Debian/Ubuntu system images are released. Check the Radxa Zero Downloads.
2021-08-25: ROCK 3A Debian/Ubuntu system images are released. Check the ROCK 3 Downloads.
2021-07-11: IOhub is even more affordable with ROCK PI X hardware
2021-06-16: Radxa Zero is released
2021-04-15: ROCK PI S Based GPS NTP appliance is launched
2021-03-13: Build a Mini Serene Screen Aquarium with ROCK Pi X
2021-03-11: ROCK Pi 4 as the perfect Chia coin crypto currency farmer

Community

Rock4/4abplus