Automotive chipmaker SemiDrive and open-source hardware manufacturer Radxa signed a strategic cooperation agreement on September 29th and released the RoboX D9M—a ready-to-use microcontroller for robots. In robotics, a microcontroller represents the real-time motion control layer that operates under the robot's higher-level artificial intelligence.
This board functions on SemiDrive's D9-Max System-on-Chip (SoC). Both companies stated that this solution frees robot manufacturers from the need to develop their own carrier boards, allowing teams to focus on motion algorithms and product definition.
The D9-Max chip integrates a 12-core CPU with an 8 TOPS NPU and three pairs of Cortex-R5/R5F clock cores for synchronous execution mode. It supports LPDDR4X memory at 4,266 Mbit/s and eMMC 5.1 storage, and complies with the ISO 26262 ASIL-B functional safety level. The SemiDrive product page indicates that hardware isolation allows one chip to run two systems, separating motion control from interaction, perception, display, and communication.
The 800 MHz clock cores provide a 25 nanosecond interrupt response time and can act as an EtherCAT master, while two DSPs accelerate inverse kinematics solutions. The chip is also equipped with 12 CAN FD channels, dual gigabit TSN Ethernet, a hardware security module, and is rated for an operating temperature range of minus 40 to 105 degrees Celsius. SemiDrive introduced D9-Max in May 2025 and reports that its D9 chips are in mass production with leading humanoid robot developers.
The RoboX D9M integrates this chip onto a 100 x 100 mm board, which features built-in EtherCAT, multiple CAN-FD channels, and RS485 industrial bus interfaces. The board comes pre-loaded with Linux 6.12.31, Ubuntu 26.04 LTS, and ROS 2 Lyrical operating systems, and is designed for direct connection to humanoid robots, quadruped machines, and collaborative manipulators. This is Radxa's first specialized motion controller for embodied AI sold as a complete 'board-SDK' kit for humanoid and wheeled robot manufacturers.
In addition to the product itself, the partners plan to collaborate on hardware reference designs, an open-source software stack, and a global developer community. Radxa, founded in 2012 and based in Shenzhen, manufactures single-board computers, system modules, and edge computing platforms. SemiDrive claims to have supplied over 14 million automotive chips to more than 70 automotive brands and 170 vehicle models, viewing robotics as part of its strategy to transition from automotive chips to embodied intelligence. SemiDrive founder and chairman, Qiu Yujing, noted that this partnership combines automotive-class computing power with Radxa's open-source engineering solutions. Radxa founder, Tang Liang, stated that today the biggest challenge for robot developers is not computational power, but the reliability gap between prototypes and mass production. Pricing and availability information has not yet been disclosed.


