Synaptics Coralboard is a development board powered by a Synaptics Astra SL2619 Edge AI SoC with a 1 TOPS Synaptics Torq inference engine implementing a Google Coral NPU, and supporting hardware-accelerated Google Gemma 3 lightweight models.
The board features 2GB of RAM and offers MIPI camera and display interfaces, a microSD card slot, a USB Type-A port, microphone inputs (I2S), mikroBUS and Qwiic- expansion connectors, and optional Wi-Fi and Bluetooth connectivity through an M.2 expansion slot.
Synaptics Coralboard specifications:
- System-on-module – Grinn AstraSOM-261x
- SoC – Synaptics Astra SL2619 SoC with 2x Cortex-A55 cores @ 2GHz, 1x Cortex-M52 core @ 200MHz, and 1 TOPS Synaptics Torq (Google Coral NPU)
- System Memory – 2GB DDR4 @ 3200Mbps (optionally 1GB)
- Storage – 16GB flash, up to 64GB
- Input Voltage – 3.2V to 5.5V
- Dimensions – 25 x 25mm, LGA178 package
- Storage – MicroSD card slot for mass storage
- Display – 4-lane MIPI DSI connector
- Camera
- 22-pin 2-lane MIPI CSI connector
- Google I/O 2026 edition variant – Arducam OV5647 1080p mini camera module
- Audio interfaces – I2S2 and I2S3 audio connectors (1.8V)
- Connectivity – Optional WiFi and Bluetooth via M.2 module
- USB
- USB-A host port
- USB-C port for power (5V only, no power negotiations) and data (device mode)
- Expansion
- M.2 E-key or E+A key slot (SDIO 3.0, UART/PCM, and GPIOs)
- I3C connector (1.8V)
- Qwiic Connect System for I2C
- mikroBUS connector – Google I/O 2026 edition variant: MikroBUS Sensor HAT board with camera connector, 2x microphones, a piezo buzzer, and a few user LEDs.
- 20-pin header GPIO header
- I/O voltage – 3.3V unless otherwise stated
- Debug interfaces
- UART console for kernel messages
- JTAG interface, THT holes for use with POGO-pin probe clip
- Shunt resistors and related TPs (for power measurements of various functions) are accessible by pogo pins from the add-on board.
- Misc
- Reset and user buttons
- 3x LEDs (1x power, 2x user)
- Power Supply
- 5V via USB-C port
- 2-pin battery connector without charging functionality
- Dimensions – TBD
The board runs a Yocto Linux distribution, and is supported by the Synaptics Astra SDK with necessary bootloaders, kernel drivers, and configuration files. It can run Google’s Gemma 3 270M model out of the box via the open-source, MLIR-based Synaptics Torq toolchain. Learn about to get started with the board on the Google Developers website.
It is being showcased at Google I/O 2026 as part of “Jellectronica” live, AI-powered musical performance combining computer vision, real-time inference, and generative audio. In practice, an NPU-accelerated YOLOv8 object detection model tracks the movement of jellyfish from the Monterey Bay Aquarium via a live stream, and the motion data is translated into control signals that drive a generative music performance powered by Google DeepMind’s Lyria Realtime model. So basically, a live concert by a bunch of jellyfish “performers”. Watch the video demo below.
When I asked a representative (PR company) about pricing and availability, the current board is a limited edition specially made for Google I/O 2026 only. However, general availability and pricing of the Synaptics Coralboard will be announced later this year. A few more details may be found on the product page, and you can register your interest by filling out this form, but note that it reads: ““.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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