Radxa Rock S0
Tiny Rockchip RK3308B SBC with up to 512MB DDR3, 8GB eMMC, microSD, WiFi 4, Bluetooth 5.0, and USB-C OTG — a postage-stamp Linux board for IoT and audio applications.
$13.99
Tap any value to browse matching devices
Specifications
Overview
The Radxa Rock S0 is one of the smallest Linux-capable single-board computers in the Radxa lineup, powered by the Rockchip RK3308B quad-core Cortex-A35 SoC. With a postage-stamp footprint, it targets deeply embedded applications — voice assistants, IoT gateways, audio streaming, and minimal-footprint Linux nodes. RAM is modest at 256 MB or 512 MB of DDR3, paired with 4 GB or 8 GB of eMMC flash and a microSD slot for additional storage.
Wireless connectivity is provided by an onboard WiFi 4 (802.11n) and Bluetooth 5.0 module, with an optional external antenna connector for improved range. There is no wired Ethernet port. The USB-C port serves as both the OTG data interface and 5 V power input. The RK3308B includes a built-in 8-channel audio codec, making the Rock S0 well-suited for smart speaker and voice capture projects.
Armbian provides minimal/IoT images based on Ubuntu 24.04 and Debian 13 for the Rock S0, with kernel 6.18 support. The board requires the rkdeveloptool utility and MASKROM mode for direct eMMC flashing, and supports CPU overclocking to 1.3 GHz via device tree overlays.
Use Cases
4IoT
Internet of Things applications including connected sensors, actuators, and smart devices that communicate over WiFi, BLE, LoRa, or other wireless protocols.
Audio
Audio playback, streaming, amplification, digital signal processing, and music projects.
embedded
Voice Assistant
Offline and cloud-connected voice assistant, wake-word detection, and speech recognition projects.
Where to Buy
Explore more of the directory — popular use cases, firmware, and specs to browse next.
