Cubie A7S - A compact Allwinner A733 SBC with USB-C DisplayPort, GbE, WiFi 6, PCIe Gen3 FFC connector, GPIO headers

Radxa has launched its third Allwinner A733 octa-core Cortex-A76/A55 SBC with the compact Cubie A7S featuring up to 16GB LPDDR5 memory, up to 256GB eMMC flash and a microSD card slot for storage, a Gigabit Ethernet RJ45 port, and a WiFi 6 and Bluetooth 5.2 wireless module.

Other features include two USB-C ports, including one supporting DisplayPort Alt mode for video output, a USB 2.0 Type-A port, a 16-pin PCIe Gen3 x1 FFC connector, 30-pin and 15-pin GPIO headers, and a 4-lane MIPI CSI camera connector. At 51 x 51 mm, it offers a middle ground between the credit card-sized Cubie A7A and the Pi Zero-sized Cubie A7Z.

Cubie A7S specifications:

SoC – Allwinner A733
- CPU
  - Dual-core Arm Cortex-A76 @ up to 2.00 GHz
  - Hexa-core Arm Cortex-A55 @ up to 1.8 GHz
  - Single-core RISC-V E902 real-time core @ up to 200 MHz
- GPU – Imagination Technologies BXM-4-64 MC1 GPU with support for OpenGL ES 3.2, OpenCL 3.0, Vulkan 1.3
- VPU
  - 8Kp24 H.265/VP9/AVS2 decoding
  - 4Kp30 H.265/H.264 encoding
- AI accelerator – Optional, up to 3 TOPS NPU
System Memory – Up to 16GB LPDDR5 @ 4800 MT/s
Storage
- MicroSD card slot
- Up to 256GB eMMC flash (optional)
Display interface – DisplayPort via USB-C port up to 4Kp60 resolution
Camera interface – 4-lane MIPI CSI connector
Networking
- Gigabit Ethernet RJ45 port
- Dual-band WiFi 6 and Bluetooth 5.4 module (Quectel FCU760K) with IPEX connector for external antenna
USB
- 1x USB 3.1 Type-C OTG port with DisplayPort Alt. mode
- 1x USB 2.0 OTG Type-C port with 5V power input
- 1x USB 2.0 Type-A port
Expansion
- 30-pin GPIO header
- 15-pin GPIO header
- 16-pin PCIe Gen3 x1 FFC connector compatible with the connector on the Raspberry Pi 5
Misc
- USB BOOT button
- Fan connector
Power Supply
- 5V/3A+ via USB-C connector
- 5V via GPIO header
Dimensions – 51 x 51 mm

On the software side, Radxa provides Android 13 and Debian Linux (Radxa OS) support, along with a hardware access/control library for Linux/Android. You’ll find OS images and other resources to get started on the documentation website. The RISC-V core runs FreeRTOS, but I could not find any development resources.

I was also told they ran OpenClaw personal AI assistant on the Radxa A7S SBC on a Debian 13 server image with Linux 6.6 and u-boot 2026. The agent can execute commands on the local hardware and control the SBC hardware interfaces. It’s not specific to that board, and they also tried it on RK3588 and CIX P1 boards. The company also noted that Armbian support for the A7S is coming soon.

I find it interesting that it’s one of the first non-headless boards that relies exclusively on a USB-C port to provide video output instead of the more traditional HDMI port or MIPI DSI connector.

The Cubie A7S SBC can be purchased on AliExpress for $28.82 and up in 4GB, 6GB, or 8GB RAM configurations. Alternatively, it’s also listed on Arace for $25 to $35. Further information may also be found on the product page.

Jean-Luc Aufranc (CNXSoft)

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.