Key benefits of the ROCK 4C+ single board computer

Reliable Rockchip SoC

ROCK 4C+ provides reliable and robust performance based on the Rockchip RK3399-T SoC, Arm big.LITTLE technology Dual Cortex-A72@1.5GHz, Quad Cortex-A53@1.0GHz CPU, Arm Mali – T860MP4 GPU and 4GB 64bit LPDDR4 RAM. Be sure that your board will deliver outstanding performance, it’s solid as a ROCK!

Power On/Off button

You ask, and we listen. FINALLY, a board with a built-in On/Off power button that can now perform safe shutdowns at the touch of a button without the risk of corrupting storage. ROCK 4C+ is an energy-efficient single-board computer that offers this huge convenience compared to alternative boards, allowing you to be flexible with your applications.

More OS, more options

ROCK 4C+ is extremely practical, as it is compatible with multiple operating systems, including Android, Debian/Ubuntu Linux, the full implementation of the Arm architecture v8‑A instructions set, and others.

No more storage limitations

ROCK 4C+ benefits from extensive storage capacity, including 4GB RAM and a high-speed eMMC socket for eMMC modules which can be used for OS and data storage.

Highly compatible with SBC accessories 

The 40-pin header supports a wide range of interface options, providing the board with a vast range of connectivity capabilities to ensure exceptional compatibility with a wide range of existing accessories. Due to the dual functionality of many of the pins, the ROCK 4C+ opens the possibilities for advanced accessories never seen before!

Dual monitor 4K output 

With an Arm Mali T860MP4 graphics processing unit (GPU) at its heart, the ROCK 4C+ is perfect for advanced multimedia applications, including games, videos and signage. The board benefits from camera and display interfaces, two micro HDMI ports supporting dual displays up to 2Kp60 and 4Kp60 resolution, high-quality stereo audio output through a 3.5mm audio jack, and much more.

True thermal management

The ROCK 4C+ has a 2pin 1.25mm header, allowing the connection to a 5V fan (or other peripheral), which can be PWM controlled.

Interfaces:

• 802.11 b/g/n/ac (WiFi 5) Wireless LAN
• Bluetooth 5.0 with BLE
• 1 x micro-SD card slot
• eMMC socket
• 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 add‑on PoE HAT)
• 1 x camera port (2‑lane MIPI CSI)
• 1 x display port (4‑lane 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. The GPIO header is 97.5% (39/40) Raspberry Pi compatible.

How to customise your ROCK board? 

Your board, your way. With OKdo, you can customise the board in large volumes. Reach out to us and learn about our conditions and how you can customise the ROCK 4C+ to tailor it to your design needs. 

You can now benefit from the adaptive design of the ROCK 4C+, add or remove components or even fully configure it for low-cost applications efficiency and environmental improvements.​ 

If you want to learn more about customisation or to buy in bulk, contact us here. 

Availability 

OKdo and Radxa ensured long-term stock availability of the ROCK 4C+. The ROCK 4C+ single board computer is the perfect Raspberry Pi alternative, allowing you to focus on developing incredible design applications and sparing you from stock hunting.

Who is Radxa? 

OKdo has an exclusive partnership with Radxa to manufacture and distribute ROCK Single Board Computers (SBCs) and ROCK System on Modules (SoMs). Radxa is a technical startup founded in 2013 that focuses on the design, manufacture and production of open-source hardware products that include the range formerly known as Rock Pi.

Technical Specifications

Key product features of the ROCK 4C+

Pinout Diagram:

ROCK 4C+ Resources

Need some inspiration to help you create amazing applications with your brand-new ROCK 4C+? Check out our resources below:

• Getting Started Guide – Get started with the ROCK 4C+ single board computer & Debian (KDE Update)
• Getting Started Guide – Get started with the ROCK 4C+ on Ubuntu Server
• Project – How to install MRAA Library on ROCK 4C+
• Project – How to install Python Thonny IDE and programme the GPIO on ROCK 4C+
• Project – How to install Python IDLE IDE and programme the GPIO on ROCK 4C+
• Project – How to setup NodeRed and install a custom GPIO module on ROCK 4C+
• Blog – First Look at ROCK 4C+ Single Board Computer: An Engineer’s Review
• Blog – The Ultimate Guide to ROCK
• Blog – Ready to ROCK? Meet the Single Board Computer you always wanted
• Downloads – OKdo Software & Downloads Hub

FAQs

What operating systems is ROCK 4C+ compatible with?
The ROCK 4C+ is equipped with the ARMv8 Instruction Set making it compatible with Debian/Ubuntu Linux, Android 7.1/Android 9.0/Android 10/Android 11, GPU-enabled AI stack such as Caffe, as well as Hardware access/control library for Linux/Android.

What applications is the ROCK 4C+ ideal for?
ROCK is extremely versatile and will satisfy the requirements of a huge variety of applications. Considering the ROCK 4C+’s tech specs, price, and sustainability it is ideal for a range of applications including, but not limited to:

• Automated Building Surveying and Terrain Mapping
• Industrial Communication & Connectivity Systems
• Prototyping
• Smart EV Charging Solutions
• Smart Livestock Count Solutions
• Smart Vending Machines

For more details of exactly what ROCK is capable of, check out our Ultimate Guide to ROCK or get in touch with our expert team to discuss your requirements.

Is the ROCK 4C+ suitable for developing AI applications?
Yes, ROCK 4C+ supports a mainstream AI stack (e.g. Caffe) with GPU acceleration.

Are there any getting-started guides available for ROCK?
Yes, please check the Resources section on this page or our Getting Started Guides hub.

Can ROCK boot from USB?
No, but the ROCK 4C+ can boot from an SD card and eMMC.

Can ROCK run multiple programs?
Yes, ROCK can run multiple programs/scripts simultaneously.

Does it support accessories?
Yes, thanks to its 40-pin GPIO header it’s compatible with a range of SBC accessories on the market. We also stock a range of ROCK accessories in our ROCK Shop.