# device — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link.

**2 device listed.**

## BigTreeTech Octopus Pro V1.1

High-voltage 3D printer control board with STM32H723ZE MCU, 8 stepper driver slots supporting up to 60V motor power, CAN bus, PT100/PT1000 support, and Marlin/Klipper/RRF firmware.

[Details](https://openhardware.directory/devices/bigtreetech-octopus-pro-v1-1) | [Markdown](https://openhardware.directory/devices/bigtreetech-octopus-pro-v1-1/md)

## BigTreeTech Octopus Max EZ V1.0

High-end 32-bit 3D printer control board with STM32H723ZET6 MCU at 550MHz, 10 EZ-socket stepper driver slots, CAN bus, eFuse protection, and Marlin/Klipper firmware support.

[Details](https://openhardware.directory/devices/bigtreetech-octopus-max-ez-v1-0) | [Markdown](https://openhardware.directory/devices/bigtreetech-octopus-max-ez-v1-0/md)