Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Development, Learning, Evaluation & Industrial Control Boards |
| Origin | - |
| Processor | Rockchip RK3308B Quad-Core Cortex-A35 |
| Clock Speed | Up to 1.3 GHz |
| RAM | 256MB or 512MB DDR3 |
| Storage | 8GB eMMC Flash (optional) |
| Connectivity | 10/100M Ethernet, Wi-Fi 802.11 b/g/n, Bluetooth 4.2 |
| GPIO Pins | 40-pin Raspberry Pi compatible header |
| Audio Interface | I2S, TDM, PDM with 4 microphone array support |
| Power Supply | 5V/2A via USB Type-C |
| Dimensions | 65mm x 30mm |
| Operating System Support | Debian, Ubuntu, Android, Buildroot |
Anonymous
Mar 24, 2026
Rating: 3/5
Good for learning, tricky for beginners
As a student, I found the hardware impressive, but flashing the OS image required some command-line knowledge that wasn't clearly explained in the quick start guide. Once running, it works great for Python scripts.
Anonymous
Mar 17, 2026
Rating: 5/5
Compact and powerful
I was surprised by how small this board is compared to a Raspberry Pi Zero, yet it packs a quad-core processor. The GPIO compatibility means I could reuse all my existing sensors and HATs without modification.
Anonymous
Mar 16, 2026
Rating: 5/5
Perfect for voice assistant projects
The RK3308B chip handles audio processing incredibly well. I used this board to build a custom smart speaker, and the four-mic array support made voice recognition accurate even in noisy rooms. Setup with Debian was straightforward.
Anonymous
Mar 08, 2026
Rating: 5/5
Best board for edge AI audio
If your project involves voice commands or audio streaming, this is the board to get. The NPU acceleration isn't huge, but the CPU efficiency for audio codecs is top-notch. Low power consumption too.
Anonymous
Mar 07, 2026
Rating: 4/5
Great value but limited RAM
For the price, this is an excellent SBC for lightweight IoT tasks. However, if you plan to run heavy containerized applications, the 256MB RAM variant might feel restrictive. Stick to the 512MB version for more headroom.
Anonymous
Mar 03, 2026
Rating: 4/5
Solid community support
Documentation is decent, and the Radxa forums are quite active. I encountered a minor driver issue with the Wi-Fi module, but the community provided a patch within hours. Recommended for intermediate users.
Q: Can I boot from a microSD card instead of eMMC?
A: Yes, the board supports booting from a microSD card. This is useful for testing different OS images before flashing them to the internal eMMC storage.
Q: What is the maximum resolution supported for display output?
A: Since this board is optimized for audio and IoT, it does not feature standard HDMI video output. It is primarily designed for headless operation or driving small OLED displays via SPI/I2C.
Q: Is there a case available for this specific form factor?
A: Yes, Radxa offers an official acrylic case designed specifically for the ROCK Pi S dimensions. Third-party cases for similar small form factors may also fit with minor adjustments.
Q: Is the GPIO voltage 3.3V or 5V tolerant?
A: The GPIO pins operate at 3.3V logic levels. Please ensure your external sensors and modules are 3.3V compatible or use level shifters to avoid damaging the board.
Q: Does this board support PoE (Power over Ethernet)?
A: The ROCK Pi S does not have built-in PoE support. You will need to use a separate PoE HAT or injector if you require power via the Ethernet cable.
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