BIGTREETECH Octopus PRO Motherboard Kit

🚀 Eight-driver 32-bit board for Klipper, Marlin and RRF

Key FeaturesPowerful 32-bit MCU

ARM Cortex-M7 STM32H723ZET6 up to 550MHz for high-speed Klipper printing, or Cortex-M4 STM32F429ZGT6 / STM32F446ZET6 at 180MHz.

Up to 8 Drivers, 60V Motor Power

Supports up to 8 pluggable stepper drivers. Motor power input supports 12-60V (motor drive supply only).

6 Controllable Fans

6 controllable fans plus 2 normally-open fans, with 12V or 5V options.

Firmware and Sensors

Supports Klipper, Marlin and RRF, DFU firmware update, BL Touch, filament sensing and a CAN bus RJ11 interface. 🔧

Choosing Your Option

• Octopus Pro-F429 / F446 / H723: the Octopus Pro motherboard only with the selected MCU. Drivers are not included.
• F429 / F446 / H723 SET 1 and SET 2: kit versions of the board with the selected MCU, bundled with TMC drivers (TMC5160T Pro / TMC2209) and a BTT Pi upgrade as shown in the option photos. Please check the option image for the exact SET contents before ordering.

MCU notes: H723 has 512KB flash and is not supported by RRF. F429 has 1MB flash and supports full RRF. F446 has 512KB flash and runs only a custom cut-down RRF PRO KitMCU OptionsSTM32H723ZET6 / STM32F429ZGT6 / STM32F446ZET6 (144 pin)Frequency180MHz (F4) / up to 550MHz (H7)Flash512K / 1M depending on MCUBoard Size160 x 100mmMounting Size150 x 90mmInput VoltageDC 15-28VMotor Input Voltage12-60VDriver ModesSTEP/DIR, UART, SPITemperature SensorsNTC100K, PT100/PT1000, on-board MAX31865Cartridge Heaters4Fans6 controllable, 2 normally openPC InterfaceType-CSD CardSDIOFirmwareKlipper, Marlin, RRFImagesFAQWhich MCU version should I choose?

Choose H723 for the fastest Klipper printing. Choose F429 if you need full RRF support. F446 suits Klipper and Marlin.

Does the drive power support 60V?

Yes, the motor drive power input supports up to 12-60V. The board logic input is DC 15-28V.

Where can I find setup guides?

Please see the manufacturer's online documentation, or message us and we will help.