
ROCK 4 Model C + 4G
ROCK 4C+ SBC based on the powerful Rockchip RK3399‑T SoC
Hexa-core processor with Arm® big.LITTLE™ dual Arm Cortex® A72, quad Cortex-A53 CPU, and Arm Mali™ T860MP4 GPU
4GB 64-bit RAM and eMMC socket
Power on/off button, integrated fan control, external antenna & audio jack
Dual micro-HDMI ports supporting displays of up to 4Kp60 resolution
Bluetooth 5.0 with BLE, Gigabit Ethernet and Wireless LAN
Overview
The ROCK 4C+ is a reliable, multifunctional and high-performing single-board computer based on a robust Rockchip RK3399T SoC, Dual Cortex® A72 CPU and Arm Mali™ T860MP4 GPU. Developed by OKdo Technology in collaboration with Radxa, the board incorporates class-leading functionality suitable for multiple multimedia and industrial applications, ensuring outstanding reliability.
With the onboard On/Off power button, ROCK 4C+ is an energy-efficient single-board computer. It also features multiple storage capabilities, such as 4GB 64-bit RAM and eMMC socket, an integrated fan control, an external antenna, an audio jack, dual-display support and two micro-HDMI ports supporting displays up to 4Kp60 resolution.
ROCK 4C+ is extremely practical, as it is compatible with multiple software options, including Android, Debian/Ubuntu Linux, the full implementation of the Arm architecture v8A instructions set, and others. The 40P GPIO extension supports a wide range of interface options, providing the board with high connectivity capabilities, such as Bluetooth 5.0 with BLE, Gigabit Ethernet and Wireless LAN and extensive compatibility with a wide range of accessories.
What are the main benefits of the ROCK 4C+?
- On board on/off power button
- Integrated fan control forthermal management
- Dual-display support
- Two micro-HDMI ports supporting displays up to 4Kp60 resolution
- Multiple connectivity capabilities so less add on hardware required, including Bluetooth 5.0 with BLE, Gigabit Ethernet & Wireless LAN
- A 40P GPIO expansion header provides extensive compatibility with a wide range of accessories
- Get more multiple memory options, including 4GB RAM and a speed eMMC socket
Key technical features of the ROCK 4C+:
- Rockchip RK3399T SoC
- Arm® big.LITTLE™ technology (Dual Cortex®-A72 frequency 1.5GHz and a Quad Cortex-A53 frequency 1.0GHz)
- Arm Mali™ T860MP4 GPU, supporting OpenGL® ES 1.1 /2.0 /3.0 /3.1 /3.2, Vulkan® 1.0, Open CL® 1.1 1.2, DirectX® 11.1
- Dual Arm Cortex – M0
- Dual channel 4GB 64bit LPDDR4
- eMMC connectors
- Display supporting mirror and extended modes
- Dual micro-HDMI
- MIPI DSI
- H.265/VP9 (HEVC) hardware decode (up to 4Kp60)
- H.264 hardware decode (up to 1080p60)
- USB TypeC™ power input
Interfaces:
- 802.11 b/g/n/ac (WiFi 5) Wireless LAN
- Bluetooth 5.0 with BLE
- 1 x micro-SD card slot
- 2 x HDMI ports supporting displays up to 4Kp60 resolution and 2Kp60
- 2 x USB2 HOST ports
- 1 x USB3 OTG/HOST port, 1x USB3 HOST port
- 1 x Gigabit Ethernet port (supports PoE with addon PoE HAT)
- 1 x camera port (2lane MIPI CSI)
- 1 x display port (4lane MIPI DSI)
- 40 x user GPIO supporting a wide range of interface options: 2 x UART, 2 x SPI bus, 2 x I2C bus, 1 x PCM/I2S, 1 x SPDIF, 1 x PWM, 1 x ADC, 6 x GPIO, 2 x 5V DC power in, 2 x 3.3V power pin.
Supported software:
Full implementation of the Arm architecture v8A instructions set, Arm NEON Advanced SIMD (single instructions, multiple data) support for accelerating media and signal processing
Armv8 cryptography extensions
TrustZone® technology support
Debian/Ubuntu Linux support
Android 7.1/Android 5.0/Android 10/Android 11 support
GPU enabled Al stack
Hardware access/control library for Linux/Android
*Please note this is the bulk variant containing 100 units of the ROCK 4C+ model
Documentation
Get Inspired
This project detects water leak and records the temperature and humidity reading at the time of leak and sends it to the Adafruit cloud.

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