While browsing AliExpress, I came across an Allwinner A733 development board (A733MAIBORADBV1) priced at $149, which piqued my interest as the price tag was much higher than other A733 boards, such as the $35+ Orange Pi 4 Pro or Radxa Cubie A7Z/A7A.

It turns out that this board not only supports up to 16GB of RAM, and Android 15. It also includes features like HDMI input and output, MIPI-CSI/DSI, eDP, capacitive touch, and M.2 expansion, making it a development platform for tablets, laptops, and AI prototypes rather than low-cost maker projects.

A733MAIBORADBV1 board specifications:

• SoC – Allwinner A733

• CPU

• Dual-core Arm Cortex-A76 @ up to 2.00 GHz

• Hexa-core Arm Cortex-A55 @ up to 1.79 GHz

• Single-core RISC-V E902 real-time core

• GPU – Imagination Technologies BXM-4-64 MC1 GPU

• VPU

• 8Kp24 H.265/VP9/AVS2 decoding

• 4Kp30 H.265/H.264 encoding

• AI accelerator – Optional, up to 3 TOPS NPU

• System Memory – 2GB, 4GB, 8GB, or 16GB LPDDR4x RAM

• Storage

• 4GB, 8GB, 16GB, 32GB, or 64GB eMMC flash

• MicroSD card slot up to 128GB

• Optional NVMe SSD via M.2 slot (on the bottom side)

• Display interfaces

• HDMI 2.0 output

• MIPI-DSI interface

• 40-pin eDP interface

• Video input

• Camera interface –30-pin MIPI-CSI camera input (30-pin connector)

• HDMI input (via LT6911C converter)

• Audio

• 3.5mm audio jack (input/output)

• Dual microphone inputs (2x 1.25mm 2-pin connectors)

• Dual 3W @ 8Ω speaker outputs

• Networking

• Gigabit Ethernet RJ45 port via Realtek RTL8211F PHY, RGMII

• Onboard WiFi 6 + Bluetooth 5.2 module (AW869A)

• USB

• USB Type-C OTG port for power, ADB, or flashing

• USB 3.0 Type-A port

• USB 2.0 Type-A port

• 3x USB 2.0 via 4-pin headers (via FE1.1S hub)

• 4-pin (1.25mm pitch) USB expansion header

• Debug – 4-pin (1.25mm pitch) UART0 serial debug header

• Expansion – M.2 M-Key 2280 slot (PCIe 3.0) for storage or AI accelerator

• Misc

• 12V fan header (2-pin connector)

• VOL-, VOL+, RST, BOOT, PWRON buttons

• 4-pin header for external button

• 2-pin flash interface

• 4-pin LT6911C programming header

• Power Supply

• 5V/3A via USB-C connector

• Optional PoE module via 4-pin header

• Dimensions – PCB: 150 x 102 x 1.6mm

• Temperature Range – Operating: 0°C to +70°C; storage: -10°C to +50°C

Like other Allwinner A733 development boards, software support for this board remains quite limited. On 16rd, a Chinese online community, forum, and online store, the listing mentions Android 14 and Android 15 support but does not provide any downloads or resources. The only usable software reference I could find for the Allwinner A733 so far is Radxa’s allwinner-bsp repository, and the ROM for the Teclast P50 AI tablet, which can be downloaded from needrom.com. Also, there are tabs like the Callsky-Tab Ctab10 Pro, which also supports Android 15.

X733 development board overview (Top) Bottom

The development board is available on AliExpress for $149.00, and in the package, you will get a 12V/3A power adapter, a Type-C data cable for power and debugging, and a USB-to-serial adapter for console access. A little more information is available on 9tripod.com (PDF).

Debashis Das is a technical content writer and embedded engineer with over five years of experience in the industry. With expertise in Embedded C, PCB Design, and SEO optimization, he effectively blends difficult technical topics with clear communication

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